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user.cfg.in: Also document deprecated entries.

Browse source 
2002-03-06  Phil Edwards  <pme@gcc.gnu.org>

	* docs/doxygen/user.cfg.in:  Also document deprecated entries.
	* docs/html/Makefile:  Example rule to rebuild porting-howto.html.
	* docs/html/17_intro/howto.html:  "gcc"->"GCC" changes, when
	referring to the collection as a whole.  New section on which macros
	can be redefined by the user.
	* docs/html/19_diagnostics/howto.html:  Update note for concepts.
	* docs/html/20_util/howto.html:  Update link to SGI.
	* docs/html/faq/index.html:  Update snapshot versions.  New entry
	on why g++ (but not gcc) must currently predefine certain macros.
	* docs/html/faq/index.txt:  Regenerated.

	* include/bits/basic_string.h (basic_string::_S_construct):  Fix
	names in declaration.
	(basic_string::compare):  These are no longer optional.
	* include/bits/ostream.tcc:  Tweak closing brace placement.
	* include/bits/stl_algo.h:  Lots of initial doxygen comment hooks.
	* include/std/std_sstream.h:  Fix typo in comment.
	* include/bits/locale_facets.tcc:  Remove unneeded header inclusion.
	* src/locale.cc:  Likewise.

From-SVN: r50376
This commit is contained in:
Phil Edwards 2002-03-06 21:22:56 +00:00
parent d95336cf37
commit 037cfe71e0
14 changed files with 621 additions and 235 deletions
Download patch file Download diff file Expand all files Collapse all files

22
libstdc++-v3/ChangeLog
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@ -1,3 +1,25 @@
2002-03-06 Phil Edwards <pme@gcc.gnu.org>
* docs/doxygen/user.cfg.in: Also document deprecated entries.
* docs/html/Makefile: Example rule to rebuild porting-howto.html.
* docs/html/17_intro/howto.html: "gcc"->"GCC" changes, when
referring to the collection as a whole. New section on which macros
can be redefined by the user.
* docs/html/19_diagnostics/howto.html: Update note for concepts.
* docs/html/20_util/howto.html: Update link to SGI.
* docs/html/faq/index.html: Update snapshot versions. New entry
on why g++ (but not gcc) must currently predefine certain macros.
* docs/html/faq/index.txt: Regenerated.
* include/bits/basic_string.h (basic_string::_S_construct): Fix
names in declaration.
(basic_string::compare): These are no longer optional.
* include/bits/ostream.tcc: Tweak closing brace placement.
* include/bits/stl_algo.h: Lots of initial doxygen comment hooks.
* include/std/std_sstream.h: Fix typo in comment.
* include/bits/locale_facets.tcc: Remove unneeded header inclusion.
* src/locale.cc: Likewise.
2002-03-06 Phil Edwards <pme@gcc.gnu.org> 2002-03-06 Phil Edwards <pme@gcc.gnu.org>
PR libstdc++/5734 PR libstdc++/5734

2
libstdc++-v3/docs/doxygen/user.cfg.in
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@ -703,7 +703,7 @@ INCLUDE_FILE_PATTERNS =
# or name=definition (no spaces). If the definition and the = are # or name=definition (no spaces). If the definition and the = are
# omitted =1 is assumed. # omitted =1 is assumed.
PREDEFINED = PREDEFINED = _GLIBCPP_DEPRECATED
# If the MACRO_EXPANSION and EXPAND_PREDEF_ONLY tags are set to YES then # If the MACRO_EXPANSION and EXPAND_PREDEF_ONLY tags are set to YES then
# this tag can be used to specify a list of macro names that should be expanded. # this tag can be used to specify a list of macro names that should be expanded.

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@ -29,6 +29,7 @@
<li><a href="#4"><code>&lt;foo&gt;</code> vs <code>&lt;foo.h&gt;</code></a> <li><a href="#4"><code>&lt;foo&gt;</code> vs <code>&lt;foo.h&gt;</code></a>
<li><a href="porting-howto.html">Porting HOWTO</a> <li><a href="porting-howto.html">Porting HOWTO</a>
<li><a href="#5">Behavior specific to libstdc++-v3</a> <li><a href="#5">Behavior specific to libstdc++-v3</a>
<li><a href="#6">Preprocessor macros controlling the library</a>
</ul> </ul>
<hr> <hr>
@ -54,20 +55,20 @@
<h2><a name="3">The Standard C++ library and multithreading</a></h2> <h2><a name="3">The Standard C++ library and multithreading</a></h2>
<p>This section discusses issues surrounding the proper compilation <p>This section discusses issues surrounding the proper compilation
of multithreaded applications which use the Standard C++ of multithreaded applications which use the Standard C++
library. This information is gcc-specific since the C++ library. This information is GCC-specific since the C++
standard does not address matters of multithreaded applications. standard does not address matters of multithreaded applications.
Unless explicitly prefaced, all information in this section is Unless explicitly prefaced, all information in this section is
current as of the gcc 3.0 release and all later point releases. current as of the GCC 3.0 release and all later point releases.
</p> </p>
<p>Earlier gcc releases had a somewhat different approach to <p>Earlier GCC releases had a somewhat different approach to
threading configuration and proper compilation. Before gcc 3.0, threading configuration and proper compilation. Before GCC 3.0,
configuration of the threading model was dictated by compiler configuration of the threading model was dictated by compiler
command-line options and macros (both of which were somewhat command-line options and macros (both of which were somewhat
thread-implementation and port-specific). There were no thread-implementation and port-specific). There were no
guarantees related to being able to link code compiled with one guarantees related to being able to link code compiled with one
set of options and macro setting with another set. For gcc 3.0, set of options and macro setting with another set. For GCC 3.0,
configuration of the threading model used with libraries and configuration of the threading model used with libraries and
user-code is performed when gcc is configured and built using user-code is performed when GCC is configured and built using
the --enable-threads and --disable-threads options. The ABI is the --enable-threads and --disable-threads options. The ABI is
stable for symbol name-mangling and limited functional stable for symbol name-mangling and limited functional
compatibility exists between code compiled under different compatibility exists between code compiled under different
@ -83,9 +84,9 @@
with another thread model useful on the platform. Other mixes with another thread model useful on the platform. Other mixes
may or may not work but are not considered supported. (Thus, if may or may not work but are not considered supported. (Thus, if
you distribute a shared C++ library in binary form only, it may you distribute a shared C++ library in binary form only, it may
be best to compile it with a gcc configured with be best to compile it with a GCC configured with
--enable-threads for maximal interchangeability and usefulness --enable-threads for maximal interchangeability and usefulness
with a user population that may have built gcc with either with a user population that may have built GCC with either
--enable-threads or --disable-threads.) --enable-threads or --disable-threads.)
</p> </p>
<p>When you link a multithreaded application, you will probably <p>When you link a multithreaded application, you will probably
@ -267,6 +268,71 @@
<a href="../faq/index.html">to the FAQ</a>. <a href="../faq/index.html">to the FAQ</a>.
</p> </p>
<hr>
<h2><a name="6">Preprocessor macros controlling the library</a></h2>
<p>Some of the semantics of the libstdc++-v3 implementation are
controlled by preprocessor macros, both during build/installation and
during compilation of user code. Many of these choices are made when
the library is built and installed (actually, during
<a href="../configopts.html">the configuration step</a>, with the
various --enable/--disable choices being translated to #define/#undef).
</p>
<p>All library macros begin with <code>_GLIBCPP_</code>. The fact that
these symbols start with a leading underscore should give you a clue
that (by default) they aren't meant to be changed by the user. :-)
</p>
<p>These macros are all gathered in the file <code>c++config.h</code>,
which is generated during installation. <strong>You must assume that
these macros cannot be redefined by your own code</strong>, unless we
document otherwise here. Some of the choices control code which has
already been compiled (i.e., libstdc++.a/.so). If you explicitly
#define or #undef these macros, the <em>headers</em> may see different
code paths, but the <em>libraries</em> which you link against will not.
If you want to experiment with different values, you must change the
config headers before building/installing the library.
</p>
<p>Below are macros which, for 3.1 and later, you may change yourself,
in your own code with #define/#undef or with -D/-U compiler flags.
The default state of the symbol is listed. &quot;Configurable&quot;
(or &quot;Not configurable&quot;) means that the symbol is initially
chosen (or not) based on --enable/--disable options at configure time.
<dl>
<dt><code>_GLIBCPP_DEPRECATED</code></dt>
<dd>Undefined by default. Not configurable. Turning this on enables
older ARM-style iostreams code, and other anachronisms. This may be
useful in updating old C++ programs which no longer meet the
requirements of the language.
</dd>
<!--
Can this actually be turned off and still produce a working lib? Must
check. -pme
No, it can't. Hmmm. -pme
<dt><code>_GLIBCPP_RESOLVE_LIB_DEFECTS</code></dt>
<dd>Defined by default. Not configurable. The library follows
corrections and updates from the ISO committee, see
<a href="../faq/index.html#5_2">here</a> and
<a href="../ext/howto.html#5">here</a> for more on this feature.
If you have code which depends on the first version of the standard,
you might try undefining this macro.
</dd>
-->
<dt><code>_GLIBCPP_CONCEPT_CHECKS</code></dt>
<dd>Undefined by default. Configurable. When defined, performs
compile-time checking on certain template instantiations to detect
violations of the requirements of the standard. This is described
in more detail <a href="../19_diagnostics/howto.html#3">here</a>.
</dd>
<!--
<dt><code></code></dt>
<dd>
</dd>
-->
</dl>
</p>
<p>Return <a href="#top">to top of page</a> or
<a href="../faq/index.html">to the FAQ</a>.
</p>
<!-- ####################################################### --> <!-- ####################################################### -->

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@ -102,6 +102,8 @@
<p>For GCC 3.0 and 3.1 they are off by default. They can be enabled at <p>For GCC 3.0 and 3.1 they are off by default. They can be enabled at
configure time with configure time with
<a href="../configopts.html"><code>--enable-concept-checks</code></a>. <a href="../configopts.html"><code>--enable-concept-checks</code></a>.
For 3.1 you can instead #define _GLIBCPP_CONCEPT_CHECKS to enable them
on a per-translation-unit basis.
</p> </p>
<p>Return <a href="#top">to top of page</a> or <p>Return <a href="#top">to top of page</a> or
<a href="../faq/index.html">to the FAQ</a>. <a href="../faq/index.html">to the FAQ</a>.

4
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@ -134,8 +134,8 @@
get slightly the wrong idea. In the interest of not reinventing get slightly the wrong idea. In the interest of not reinventing
the wheel, we will refer you to the introduction to the functor the wheel, we will refer you to the introduction to the functor
concept written by SGI as part of their STL, in concept written by SGI as part of their STL, in
<a href="http://www.sgi.com/Technology/STL/functors.html">their <a href="http://www.sgi.com/tech/stl/functors.html">their
http://www.sgi.com/Technology/STL/functors.html</a>. http://www.sgi.com/tech/stl/functors.html</a>.
</p> </p>
<p>Return <a href="#top">to top of page</a> or <p>Return <a href="#top">to top of page</a> or
<a href="../faq/index.html">to the FAQ</a>. <a href="../faq/index.html">to the FAQ</a>.

6
libstdc++-v3/docs/html/Makefile
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@ -2,7 +2,7 @@
MAKEINFO=makeinfo MAKEINFO=makeinfo
INC=../../../gcc/doc/include INC=../../../gcc/doc/include
all: faq/index.txt 17_intro/porting.html all: faq/index.txt 17_intro/porting.html 17_intro/porting-howto.html
faq/index.txt: faq/index.html faq/index.txt: faq/index.html
@ -11,3 +11,7 @@ faq/index.txt: faq/index.html
17_intro/porting.html: 17_intro/porting.texi 17_intro/porting.html: 17_intro/porting.texi
${MAKEINFO} -I ${INC} --html --no-split $< -o $@ ${MAKEINFO} -I ${INC} --html --no-split $< -o $@
# known to work under RH; this can be cleaned up later if needed
17_intro/porting-howto.html: 17_intro/porting-howto.xml
xltproc -o $@ /usr/share/xml/docbook/xsl-stylesheets-1.48-2/html/docbook.xsl $<

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@ -59,6 +59,8 @@
<li><a href="#3_2">[removed]</a> <li><a href="#3_2">[removed]</a>
<li><a href="#3_3">[removed]</a> <li><a href="#3_3">[removed]</a>
<li><a href="#3_4">I can't use 'long long' on Solaris</a> <li><a href="#3_4">I can't use 'long long' on Solaris</a>
<li><a href="#3_5"><code>_XOPEN_SOURCE</code> /
<code>_GNU_SOURCE</code> / etc is always defined</a>
</ol> </ol>
<li><a href="#4_0">Known Bugs and Non-Bugs</a> <li><a href="#4_0">Known Bugs and Non-Bugs</a>
@ -109,7 +111,7 @@
library reaches stable plateaus, it is captured in a snapshot library reaches stable plateaus, it is captured in a snapshot
and released. The current release is and released. The current release is
<a href="http://gcc.gnu.org/libstdc++/download.html">the <a href="http://gcc.gnu.org/libstdc++/download.html">the
thirteenth snapshot</a>. For those who want to see exactly how fourteenth snapshot</a>. For those who want to see exactly how
far the project has come, or just want the latest far the project has come, or just want the latest
bleeding-edge code, the up-to-date source is available over bleeding-edge code, the up-to-date source is available over
anonymous CVS, and can even be browsed over the Web (see below). anonymous CVS, and can even be browsed over the Web (see below).
@ -165,7 +167,7 @@
<hr> <hr>
<h2><a name="1_4">1.4 How do I get libstdc++?</a></h2> <h2><a name="1_4">1.4 How do I get libstdc++?</a></h2>
<p>The thirteenth (and latest) snapshot of libstdc++-v3 is <p>The fourteenth (and latest) snapshot of libstdc++-v3 is
<a href="http://gcc.gnu.org/libstdc++/download.html">available via <a href="http://gcc.gnu.org/libstdc++/download.html">available via
ftp</a>. ftp</a>.
</p> </p>
@ -428,6 +430,44 @@ which is no longer available, thanks deja...-->
<p>This has been fixed for 3.0.3 and onwards. <p>This has been fixed for 3.0.3 and onwards.
</p> </p>
<hr>
<h2><a name="3_5">3.5 <code>_XOPEN_SOURCE</code> / <code>_GNU_SOURCE</code>
/ etc is always defined</a></h2>
<p>On Solaris, g++ (but not gcc) always defines the preprocessor
macro <code>_XOPEN_SOURCE</code>. On GNU/Linux, the same happens
with <code>_GNU_SOURCE</code>. (This is not an exhaustive list;
other macros and other platforms are also affected.)
</p>
<p>These macros are typically used in C library headers, guarding new
versions of functions from their older versions. The C++ standard
library includes the C standard library, but it requires the C90
version, which for backwards-compatability reasons is often not the
default for many vendors.
</p>
<p>More to the point, the C++ standard requires behavior which is only
available on certain platforms after certain symbols are defined.
Usually the issue involves I/O-related typedefs. In order to
ensure correctness, the compiler simply predefines those symbols.
</p>
<p>Note that it's not enough to #define them only when the library is
being built (during installation). Since we don't have an 'export'
keyword, much of the library exists as headers, which means that
the symbols must also be defined as your programs are parsed and
compiled.
</p>
<p>To see which symbols are defined, look for CPLUSPLUS_CPP_SPEC in
the gcc config headers for your target (and try changing them to
see what happens when building complicated code). You can also run
<code>&quot;g++ -E -dM - &lt; /dev/null&quot;</code> to display
a list of predefined macros for any particular installation.
</p>
<p>This has been discussed on the mailing lists
<a href="http://gcc.gnu.org/cgi-bin/htsearch?method=and&format=builtin-long&sort=score&words=_XOPEN_SOURCE+Solaris">quite a bit</a>.
</p>
<p>This method is something of a wart. We'd like to find a cleaner
solution, but nobody yet has contributed the time.
</p>
<hr> <hr>
<h1><a name="4_0">4.0 Known Bugs and Non-Bugs</a></h1> <h1><a name="4_0">4.0 Known Bugs and Non-Bugs</a></h1>
<em>Note that this section can get rapdily outdated -- such is the <em>Note that this section can get rapdily outdated -- such is the
@ -462,39 +502,13 @@ which is no longer available, thanks deja...-->
<!-- Yeah, I meant that "verbatim clip" thing literally... :-) --> <!-- Yeah, I meant that "verbatim clip" thing literally... :-) -->
<pre> <pre>
New in 3.0.96: New in 3.0.97:
--- ---
- more doxygen documentation. - more doxygen documentation.
- extensions moved out of namespace std - more named locale bug fixes
- HPUX long long support - support for symbol versioning when using GNU ld &gt;= 2.12
- more string optimizations - wide-io
- support for NetBSD cross compiles - tuning for executable size
- concept_check merge from boost
- header simplification
- named locale bug shakeout
- thread testsuite
New in 3.0.95:
---
- add S390, m68k, x86-64 support.
- doxygen documentation has been extended, including man pages.
- verbose terminate handling has been added.
- some libsupc++ tweaks
- warnings for deprecated headers now active.
- dejagnu testsuite preliminary documentation.
- dejagnu testsuite default.
- dejagnu testsuite cross compiler, multilib safe.
- long long iostreams on by default, rework of ISO C99 support.
- iterator re-write and testsuites.
- container testsuites.
- allocator revamp and testsuites.
- more concept-checking work.
- basic_string optimization and MT fixes.
- new limits implementation.
- update -fno-exceptions code, verify it works.
- full named locale support fpr all facets, choice of gnu,
ieee_1003.1-200x (POSIX 2), or generic models. Full support depends
on target OS and underlying "C" library support.
</pre> </pre>

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@ -32,29 +32,30 @@
2. [22][removed] 2. [22][removed]
3. [23][removed] 3. [23][removed]
4. [24]I can't use 'long long' on Solaris 4. [24]I can't use 'long long' on Solaris
4. [25]Known Bugs and Non-Bugs 5. [25]_XOPEN_SOURCE / _GNU_SOURCE / etc is always defined
1. [26]What works already? 4. [26]Known Bugs and Non-Bugs
2. [27]Bugs in gcc/g++ (not libstdc++-v3) 1. [27]What works already?
3. [28]Bugs in the C++ language/lib specification 2. [28]Bugs in gcc/g++ (not libstdc++-v3)
4. [29]Things in libstdc++ that look like bugs 3. [29]Bugs in the C++ language/lib specification
o [30]reopening a stream fails 4. [30]Things in libstdc++ that look like bugs
o [31]-Weffc++ complains too much o [31]reopening a stream fails
o [32]"ambiguous overloads" after including an old-style o [32]-Weffc++ complains too much
o [33]"ambiguous overloads" after including an old-style
header header
o [33]The g++-3 headers are not ours o [34]The g++-3 headers are not ours
o [34]compilation errors from streambuf.h o [35]compilation errors from streambuf.h
o [35]errors about *Cconcept and constraints in the STL... o [36]errors about *Cconcept and constraints in the STL...
5. [36]Aw, that's easy to fix! 5. [37]Aw, that's easy to fix!
5. [37]Miscellaneous 5. [38]Miscellaneous
1. [38]string::iterator is not char*; vector<T>::iterator is not 1. [39]string::iterator is not char*; vector<T>::iterator is not
T* T*
2. [39]What's next after libstdc++-v3? 2. [40]What's next after libstdc++-v3?
3. [40]What about the STL from SGI? 3. [41]What about the STL from SGI?
4. [41]Extensions and Backward Compatibility 4. [42]Extensions and Backward Compatibility
5. [42][removed] 5. [43][removed]
6. [43]Is libstdc++-v3 thread-safe? 6. [44]Is libstdc++-v3 thread-safe?
7. [44]How do I get a copy of the ISO C++ Standard? 7. [45]How do I get a copy of the ISO C++ Standard?
8. [45]What's an ABI and why is it so messy? 8. [46]What's an ABI and why is it so messy?
_________________________________________________________________ _________________________________________________________________
1.0 General Information 1.0 General Information
@ -64,18 +65,18 @@
The GNU Standard C++ Library v3 is an ongoing project to implement the The GNU Standard C++ Library v3 is an ongoing project to implement the
ISO 14882 Standard C++ library as described in chapters 17 through 27 ISO 14882 Standard C++ library as described in chapters 17 through 27
and annex D. As the library reaches stable plateaus, it is captured in and annex D. As the library reaches stable plateaus, it is captured in
a snapshot and released. The current release is [46]the thirteenth a snapshot and released. The current release is [47]the fourteenth
snapshot. For those who want to see exactly how far the project has snapshot. For those who want to see exactly how far the project has
come, or just want the latest bleeding-edge code, the up-to-date come, or just want the latest bleeding-edge code, the up-to-date
source is available over anonymous CVS, and can even be browsed over source is available over anonymous CVS, and can even be browsed over
the Web (see below). the Web (see below).
The older libstdc++-v2 project is no longer maintained; the code has The older libstdc++-v2 project is no longer maintained; the code has
been completely replaced and rewritten. [47]If you are using V2, then been completely replaced and rewritten. [48]If you are using V2, then
you need to report bugs to your system vendor, not to the V3 list. you need to report bugs to your system vendor, not to the V3 list.
A more formal description of the V3 goals can be found in the official A more formal description of the V3 goals can be found in the official
[48]design document. [49]design document.
_________________________________________________________________ _________________________________________________________________
1.2 Why should I use libstdc++? 1.2 Why should I use libstdc++?
@ -88,8 +89,8 @@
The GNU C/C++/FORTRAN/<pick-a-language> compiler (gcc, g++, etc) is The GNU C/C++/FORTRAN/<pick-a-language> compiler (gcc, g++, etc) is
widely considered to be one of the leading compilers in the world. Its widely considered to be one of the leading compilers in the world. Its
development has recently been taken over by the [49]GCC team. All of development has recently been taken over by the [50]GCC team. All of
the rapid development and near-legendary [50]portability that are the the rapid development and near-legendary [51]portability that are the
hallmarks of an open-source project are being applied to libstdc++. hallmarks of an open-source project are being applied to libstdc++.
That means that all of the Standard classes and functions (such as That means that all of the Standard classes and functions (such as
@ -107,16 +108,16 @@
Development and discussion is held on the libstdc++ mailing list. Development and discussion is held on the libstdc++ mailing list.
Subscribing to the list, or searching the list archives, is open to Subscribing to the list, or searching the list archives, is open to
everyone. You can read instructions for doing so on the [51]homepage. everyone. You can read instructions for doing so on the [52]homepage.
If you have questions, ideas, code, or are just curious, sign up! If you have questions, ideas, code, or are just curious, sign up!
_________________________________________________________________ _________________________________________________________________
1.4 How do I get libstdc++? 1.4 How do I get libstdc++?
The thirteenth (and latest) snapshot of libstdc++-v3 is [52]available The fourteenth (and latest) snapshot of libstdc++-v3 is [53]available
via ftp. via ftp.
The [53]homepage has instructions for retrieving the latest CVS The [54]homepage has instructions for retrieving the latest CVS
sources, and for browsing the CVS sources over the web. sources, and for browsing the CVS sources over the web.
The subset commonly known as the Standard Template Library (chapters The subset commonly known as the Standard Template Library (chapters
@ -132,7 +133,7 @@
1.6 How do I contribute to the effort? 1.6 How do I contribute to the effort?
Here is [54]a page devoted to this topic. Subscribing to the mailing Here is [55]a page devoted to this topic. Subscribing to the mailing
list (see above, or the homepage) is a very good idea if you have list (see above, or the homepage) is a very good idea if you have
something to contribute, or if you have spare time and want to help. something to contribute, or if you have spare time and want to help.
Contributions don't have to be in the form of source code; anybody who Contributions don't have to be in the form of source code; anybody who
@ -167,11 +168,11 @@
extracted into an updated utilities library, but nobody has stated extracted into an updated utilities library, but nobody has stated
such a project yet. such a project yet.
(The [55]Boost site houses free C++ libraries that do varying things, (The [56]Boost site houses free C++ libraries that do varying things,
and happened to be started by members of the Standards Committee. and happened to be started by members of the Standards Committee.
Certain "useful stuff" classes will probably migrate there.) Certain "useful stuff" classes will probably migrate there.)
For the bold and/or desperate, the [56]GCC FAQ describes where to find For the bold and/or desperate, the [57]GCC FAQ describes where to find
the last libg++ source. the last libg++ source.
_________________________________________________________________ _________________________________________________________________
@ -181,16 +182,16 @@
remains unanswered, then just ask the mailing list. At present, you do remains unanswered, then just ask the mailing list. At present, you do
not need to be subscribed to the list to send a message to it. More not need to be subscribed to the list to send a message to it. More
information is available on the homepage (including how to browse the information is available on the homepage (including how to browse the
list archives); to send to the list, use [57]libstdc++@gcc.gnu.org. list archives); to send to the list, use [58]libstdc++@gcc.gnu.org.
If you have a question that you think should be included here, or if If you have a question that you think should be included here, or if
you have a question about a question/answer here, contact [58]Phil you have a question about a question/answer here, contact [59]Phil
Edwards or [59]Gabriel Dos Reis. Edwards or [60]Gabriel Dos Reis.
_________________________________________________________________ _________________________________________________________________
1.9 What are the license terms for libstdc++-v3? 1.9 What are the license terms for libstdc++-v3?
See [60]our license description for these and related questions. See [61]our license description for these and related questions.
_________________________________________________________________ _________________________________________________________________
2.0 Installation 2.0 Installation
@ -207,13 +208,13 @@
* The GNU Autotools are needed if you are messing with the configury * The GNU Autotools are needed if you are messing with the configury
or makefiles. or makefiles.
The file [61]documentation.html provides a good overview of the steps The file [62]documentation.html provides a good overview of the steps
necessary to build, install, and use the library. Instructions for necessary to build, install, and use the library. Instructions for
configuring the library with new flags such as --enable-threads are configuring the library with new flags such as --enable-threads are
there also, as well as patches and instructions for working with GCC there also, as well as patches and instructions for working with GCC
2.95. 2.95.
The top-level install.html and [62]RELEASE-NOTES files contain the The top-level install.html and [63]RELEASE-NOTES files contain the
exact build and installation instructions. You may wish to browse exact build and installation instructions. You may wish to browse
those files over CVSweb ahead of time to get a feel for what's those files over CVSweb ahead of time to get a feel for what's
required. RELEASE-NOTES is located in the ".../docs/17_intro/" required. RELEASE-NOTES is located in the ".../docs/17_intro/"
@ -230,8 +231,8 @@
The Concurrent Versions System is one of several revision control The Concurrent Versions System is one of several revision control
packages. It was selected for GNU projects because it's free (speech), packages. It was selected for GNU projects because it's free (speech),
free (beer), and very high quality. The [63]CVS entry in the GNU free (beer), and very high quality. The [64]CVS entry in the GNU
software catalogue has a better description as well as a [64]link to software catalogue has a better description as well as a [65]link to
the makers of CVS. the makers of CVS.
The "anonymous client checkout" feature of CVS is similar to anonymous The "anonymous client checkout" feature of CVS is similar to anonymous
@ -282,7 +283,7 @@
people don't like it, so here are two pseudo-solutions: people don't like it, so here are two pseudo-solutions:
If the only functions from libstdc++.a which you need are language If the only functions from libstdc++.a which you need are language
support functions (those listed in [65]clause 18 of the standard, support functions (those listed in [66]clause 18 of the standard,
e.g., new and delete), then try linking against libsupc++.a (usually e.g., new and delete), then try linking against libsupc++.a (usually
specifying -lsupc++ when calling g++ for the final link step will do specifying -lsupc++ when calling g++ for the final link step will do
it). This library contains only those support routines, one per object it). This library contains only those support routines, one per object
@ -346,6 +347,41 @@
commonly reported platform affected was Solaris. commonly reported platform affected was Solaris.
This has been fixed for 3.0.3 and onwards. This has been fixed for 3.0.3 and onwards.
_________________________________________________________________
3.5 _XOPEN_SOURCE / _GNU_SOURCE / etc is always defined
On Solaris, g++ (but not gcc) always defines the preprocessor macro
_XOPEN_SOURCE. On GNU/Linux, the same happens with _GNU_SOURCE. (This
is not an exhaustive list; other macros and other platforms are also
affected.)
These macros are typically used in C library headers, guarding new
versions of functions from their older versions. The C++ standard
library includes the C standard library, but it requires the C90
version, which for backwards-compatability reasons is often not the
default for many vendors.
More to the point, the C++ standard requires behavior which is only
available on certain platforms after certain symbols are defined.
Usually the issue involves I/O-related typedefs. In order to ensure
correctness, the compiler simply predefines those symbols.
Note that it's not enough to #define them only when the library is
being built (during installation). Since we don't have an 'export'
keyword, much of the library exists as headers, which means that the
symbols must also be defined as your programs are parsed and compiled.
To see which symbols are defined, look for CPLUSPLUS_CPP_SPEC in the
gcc config headers for your target (and try changing them to see what
happens when building complicated code). You can also run "g++ -E -dM
- < /dev/null" to display a list of predefined macros for any
particular installation.
This has been discussed on the mailing lists [67]quite a bit.
This method is something of a wart. We'd like to find a cleaner
solution, but nobody yet has contributed the time.
_________________________________________________________________ _________________________________________________________________
4.0 Known Bugs and Non-Bugs 4.0 Known Bugs and Non-Bugs
@ -359,7 +395,7 @@
include/Makefile, resulting in files like gthr.h and gthr-single.h not include/Makefile, resulting in files like gthr.h and gthr-single.h not
being found. being found.
Please read [66]the configuration instructions for GCC, specifically Please read [68]the configuration instructions for GCC, specifically
the part about configuring in a separate build directory, and how the part about configuring in a separate build directory, and how
strongly recommended it is. Building in the source directory is strongly recommended it is. Building in the source directory is
fragile, is rarely tested, and tends to break, as in this case. This fragile, is rarely tested, and tends to break, as in this case. This
@ -374,39 +410,13 @@
This is a verbatim clip from the "Status" section of the RELEASE-NOTES This is a verbatim clip from the "Status" section of the RELEASE-NOTES
for the latest snapshot. For a list of fixed bugs, see that file. for the latest snapshot. For a list of fixed bugs, see that file.
New in 3.0.96: New in 3.0.97:
--- ---
- more doxygen documentation. - more doxygen documentation.
- extensions moved out of namespace std - more named locale bug fixes
- HPUX long long support - support for symbol versioning when using GNU ld >= 2.12
- more string optimizations - wide-io
- support for NetBSD cross compiles - tuning for executable size
- concept_check merge from boost
- header simplification
- named locale bug shakeout
- thread testsuite
New in 3.0.95:
---
- add S390, m68k, x86-64 support.
- doxygen documentation has been extended, including man pages.
- verbose terminate handling has been added.
- some libsupc++ tweaks
- warnings for deprecated headers now active.
- dejagnu testsuite preliminary documentation.
- dejagnu testsuite default.
- dejagnu testsuite cross compiler, multilib safe.
- long long iostreams on by default, rework of ISO C99 support.
- iterator re-write and testsuites.
- container testsuites.
- allocator revamp and testsuites.
- more concept-checking work.
- basic_string optimization and MT fixes.
- new limits implementation.
- update -fno-exceptions code, verify it works.
- full named locale support fpr all facets, choice of gnu,
ieee_1003.1-200x (POSIX 2), or generic models. Full support depends
on target OS and underlying "C" library support.
_________________________________________________________________ _________________________________________________________________
4.2 Bugs in gcc/g++ (not libstdc++-v3) 4.2 Bugs in gcc/g++ (not libstdc++-v3)
@ -416,30 +426,30 @@ New in 3.0.95:
libstdc++. If you are experiencing one of these problems, you can find libstdc++. If you are experiencing one of these problems, you can find
more information on the libstdc++ and the GCC mailing lists. more information on the libstdc++ and the GCC mailing lists.
Before reporting a bug, examine the [67]bugs database with the Before reporting a bug, examine the [69]bugs database with the
category set to "libstdc++". The BUGS file in the source tree also category set to "libstdc++". The BUGS file in the source tree also
tracks known serious problems. tracks known serious problems.
* Debugging is problematic, due to bugs in line-number generation * Debugging is problematic, due to bugs in line-number generation
(mostly fixed in the compiler) and gdb lagging behind the compiler (mostly fixed in the compiler) and gdb lagging behind the compiler
(lack of personnel). We recommend configuring the compiler using (lack of personnel). We recommend configuring the compiler using
--with-dwarf2 if the DWARF2 debugging format is not already the --with-dwarf2 if the DWARF2 debugging format is not already the
default on your platform. Also, [68]changing your GDB settings can default on your platform. Also, [70]changing your GDB settings can
have a profound effect on your C++ debugging experiences. :-) have a profound effect on your C++ debugging experiences. :-)
_________________________________________________________________ _________________________________________________________________
4.3 Bugs in the C++ language/lib specification 4.3 Bugs in the C++ language/lib specification
Yes, unfortunately, there are some. In a [69]message to the list, Yes, unfortunately, there are some. In a [71]message to the list,
Nathan Myers announced that he has started a list of problems in the Nathan Myers announced that he has started a list of problems in the
ISO C++ Standard itself, especially with regard to the chapters that ISO C++ Standard itself, especially with regard to the chapters that
concern the library. The list itself is [70]posted on his website. concern the library. The list itself is [72]posted on his website.
Developers who are having problems interpreting the Standard may wish Developers who are having problems interpreting the Standard may wish
to consult his notes. to consult his notes.
For those people who are not part of the ISO Library Group (i.e., For those people who are not part of the ISO Library Group (i.e.,
nearly all of us needing to read this page in the first place :-), a nearly all of us needing to read this page in the first place :-), a
public list of the library defects is occasionally published [71]here. public list of the library defects is occasionally published [73]here.
Some of these have resulted in [72]code changes. Some of these have resulted in [74]code changes.
_________________________________________________________________ _________________________________________________________________
4.4 Things in libstdc++ that look like bugs 4.4 Things in libstdc++ that look like bugs
@ -471,7 +481,7 @@ New in 3.0.95:
state on the previous file. The reason is that the state flags are not state on the previous file. The reason is that the state flags are not
cleared on a successful call to open(). The standard unfortunately did cleared on a successful call to open(). The standard unfortunately did
not specify behavior in this case, and to everybody's great sorrow, not specify behavior in this case, and to everybody's great sorrow,
the [73]proposed LWG resolution (see DR #22) is to leave the flags the [75]proposed LWG resolution (see DR #22) is to leave the flags
unchanged. You must insert a call to fs.clear() between the calls to unchanged. You must insert a call to fs.clear() between the calls to
close() and open(), and then everything will work like we all expect close() and open(), and then everything will work like we all expect
it to work. it to work.
@ -481,14 +491,14 @@ New in 3.0.95:
same namespace as other comparison functions (e.g., 'using' them and same namespace as other comparison functions (e.g., 'using' them and
the <iterator> header), then you will suddenly be faced with huge the <iterator> header), then you will suddenly be faced with huge
numbers of ambiguity errors. This was discussed on the -v3 list; numbers of ambiguity errors. This was discussed on the -v3 list;
Nathan Myers [74]sums things up here. Nathan Myers [76]sums things up here.
The g++-3 headers are not ours The g++-3 headers are not ours
If you have found an extremely broken header file which is causing If you have found an extremely broken header file which is causing
problems for you, look carefully before submitting a "high" priority problems for you, look carefully before submitting a "high" priority
bug report (which you probably shouldn't do anyhow; see the last bug report (which you probably shouldn't do anyhow; see the last
paragraph of the page describing [75]the GCC bug database). paragraph of the page describing [77]the GCC bug database).
If the headers are in ${prefix}/include/g++-3, or if the installed If the headers are in ${prefix}/include/g++-3, or if the installed
library's name looks like libstdc++-2.10.a or libstdc++-libc6-2.10.so, library's name looks like libstdc++-2.10.a or libstdc++-libc6-2.10.so,
@ -498,7 +508,7 @@ New in 3.0.95:
Currently our header files are installed in ${prefix}/include/g++-v3 Currently our header files are installed in ${prefix}/include/g++-v3
(see the 'v'?). This may change with the next release of GCC, as it (see the 'v'?). This may change with the next release of GCC, as it
may be too confusing, but [76]the question has not yet been decided. may be too confusing, but [78]the question has not yet been decided.
glibc If you're on a GNU/Linux system and have just upgraded to glibc glibc If you're on a GNU/Linux system and have just upgraded to glibc
2.2, but are still using gcc 2.95.2, then you should have read the 2.2, but are still using gcc 2.95.2, then you should have read the
@ -511,7 +521,7 @@ type has changed in glibc 2.2. The patch is at
http://clisp.cons.org/~haible/gccinclude-glibc-2.2-compat.diff http://clisp.cons.org/~haible/gccinclude-glibc-2.2-compat.diff
Note that 2.95.x shipped with the [77]old v2 library which is no Note that 2.95.x shipped with the [79]old v2 library which is no
longer maintained. Also note that gcc 2.95.3 fixes this problem, but longer maintained. Also note that gcc 2.95.3 fixes this problem, but
requires a separate patch for libstdc++-v3. requires a separate patch for libstdc++-v3.
@ -524,23 +534,23 @@ http://clisp.cons.org/~haible/gccinclude-glibc-2.2-compat.diff
visibility, or you just plain forgot, etc). visibility, or you just plain forgot, etc).
More information, including how to optionally enable/disable the More information, including how to optionally enable/disable the
checks, is available [78]here. checks, is available [80]here.
_________________________________________________________________ _________________________________________________________________
4.5 Aw, that's easy to fix! 4.5 Aw, that's easy to fix!
If you have found a bug in the library and you think you have a If you have found a bug in the library and you think you have a
working fix, then send it in! The main GCC site has a page on working fix, then send it in! The main GCC site has a page on
[79]submitting patches that covers the procedure, but for libstdc++ [81]submitting patches that covers the procedure, but for libstdc++
you should also send the patch to our mailing list in addition to the you should also send the patch to our mailing list in addition to the
GCC patches mailing list. The libstdc++ [80]contributors' page also GCC patches mailing list. The libstdc++ [82]contributors' page also
talks about how to submit patches. talks about how to submit patches.
In addition to the description, the patch, and the ChangeLog entry, it In addition to the description, the patch, and the ChangeLog entry, it
is a Good Thing if you can additionally create a small test program to is a Good Thing if you can additionally create a small test program to
test for the presence of the bug that your patch fixes. Bugs have a test for the presence of the bug that your patch fixes. Bugs have a
way of being reintroduced; if an old bug creeps back in, it will be way of being reintroduced; if an old bug creeps back in, it will be
caught immediately by the [81]testsuite -- but only if such a test caught immediately by the [83]testsuite -- but only if such a test
exists. exists.
_________________________________________________________________ _________________________________________________________________
@ -574,7 +584,7 @@ http://clisp.cons.org/~haible/gccinclude-glibc-2.2-compat.diff
libstdc++. Some of that is already happening, see 4.2. Some of libstdc++. Some of that is already happening, see 4.2. Some of
those changes are being predicted by the library maintainers, and those changes are being predicted by the library maintainers, and
we add code to the library based on what the current proposed we add code to the library based on what the current proposed
resolution specifies. Those additions are listed in [82]the resolution specifies. Those additions are listed in [84]the
extensions page. extensions page.
2. Performance tuning. Lots of performance tuning. This too is 2. Performance tuning. Lots of performance tuning. This too is
already underway for post-3.0 releases, starting with memory already underway for post-3.0 releases, starting with memory
@ -590,13 +600,13 @@ http://clisp.cons.org/~haible/gccinclude-glibc-2.2-compat.diff
type from C99.) Bugfixes and rewrites (to improve or fix thread type from C99.) Bugfixes and rewrites (to improve or fix thread
safety, for instance) will of course be a continuing task. safety, for instance) will of course be a continuing task.
[83]This question about the next libstdc++ prompted some brief but [85]This question about the next libstdc++ prompted some brief but
interesting [84]speculation. interesting [86]speculation.
_________________________________________________________________ _________________________________________________________________
5.3 What about the STL from SGI? 5.3 What about the STL from SGI?
The [85]STL from SGI, version 3.3, was the most recent merge of the The [87]STL from SGI, version 3.3, was the most recent merge of the
STL codebase. The code in libstdc++ contains many fixes and changes, STL codebase. The code in libstdc++ contains many fixes and changes,
and it is very likely that the SGI code is no longer under active and it is very likely that the SGI code is no longer under active
development. We expect that no future merges will take place. development. We expect that no future merges will take place.
@ -617,7 +627,7 @@ http://clisp.cons.org/~haible/gccinclude-glibc-2.2-compat.diff
#include <ext/hash_map> #include <ext/hash_map>
Extensions to the library have [86]their own page. Extensions to the library have [88]their own page.
_________________________________________________________________ _________________________________________________________________
5.5 [removed] 5.5 [removed]
@ -666,8 +676,8 @@ a
otherwise documented as safe, do not assume that two threads may otherwise documented as safe, do not assume that two threads may
access a shared standard library object at the same time. access a shared standard library object at the same time.
See chapters [87]17 (library introduction), [88]23 (containers), and See chapters [89]17 (library introduction), [90]23 (containers), and
[89]27 (I/O) for more information. [91]27 (I/O) for more information.
_________________________________________________________________ _________________________________________________________________
5.7 How do I get a copy of the ISO C++ Standard? 5.7 How do I get a copy of the ISO C++ Standard?
@ -678,11 +688,11 @@ a
their two-meeting commitment for voting rights, may get a copy of the their two-meeting commitment for voting rights, may get a copy of the
standard from their respective national standards organization. In the standard from their respective national standards organization. In the
USA, this national standards organization is ANSI and their website is USA, this national standards organization is ANSI and their website is
right [90]here. (And if you've already registered with them, clicking right [92]here. (And if you've already registered with them, clicking
this link will take you to directly to the place where you can [91]buy this link will take you to directly to the place where you can [93]buy
the standard on-line. the standard on-line.
Who is your country's member body? Visit the [92]ISO homepage and find Who is your country's member body? Visit the [94]ISO homepage and find
out! out!
_________________________________________________________________ _________________________________________________________________
@ -733,8 +743,8 @@ a
encompasses the standard library. encompasses the standard library.
_________________________________________________________________ _________________________________________________________________
See [93]license.html for copying conditions. Comments and suggestions See [95]license.html for copying conditions. Comments and suggestions
are welcome, and may be sent to [94]the libstdc++ mailing list. are welcome, and may be sent to [96]the libstdc++ mailing list.
References References
@ -762,73 +772,75 @@ References
22. ../faq/index.html#3_2 22. ../faq/index.html#3_2
23. ../faq/index.html#3_3 23. ../faq/index.html#3_3
24. ../faq/index.html#3_4 24. ../faq/index.html#3_4
25. ../faq/index.html#4_0 25. ../faq/index.html#3_5
26. ../faq/index.html#4_1 26. ../faq/index.html#4_0
27. ../faq/index.html#4_2 27. ../faq/index.html#4_1
28. ../faq/index.html#4_3 28. ../faq/index.html#4_2
29. ../faq/index.html#4_4 29. ../faq/index.html#4_3
30. ../faq/index.html#4_4_iostreamclear 30. ../faq/index.html#4_4
31. ../faq/index.html#4_4_Weff 31. ../faq/index.html#4_4_iostreamclear
32. ../faq/index.html#4_4_rel_ops 32. ../faq/index.html#4_4_Weff
33. ../faq/index.html#4_4_interface 33. ../faq/index.html#4_4_rel_ops
34. ../faq/index.html#4_4_glibc 34. ../faq/index.html#4_4_interface
35. ../faq/index.html#4_4_checks 35. ../faq/index.html#4_4_glibc
36. ../faq/index.html#4_5 36. ../faq/index.html#4_4_checks
37. ../faq/index.html#5_0 37. ../faq/index.html#4_5
38. ../faq/index.html#5_1 38. ../faq/index.html#5_0
39. ../faq/index.html#5_2 39. ../faq/index.html#5_1
40. ../faq/index.html#5_3 40. ../faq/index.html#5_2
41. ../faq/index.html#5_4 41. ../faq/index.html#5_3
42. ../faq/index.html#5_5 42. ../faq/index.html#5_4
43. ../faq/index.html#5_6 43. ../faq/index.html#5_5
44. ../faq/index.html#5_7 44. ../faq/index.html#5_6
45. ../faq/index.html#5_8 45. ../faq/index.html#5_7
46. http://gcc.gnu.org/libstdc++/download.html 46. ../faq/index.html#5_8
47. ../faq/index.html#4_4_interface 47. http://gcc.gnu.org/libstdc++/download.html
48. ../17_intro/DESIGN 48. ../faq/index.html#4_4_interface
49. http://gcc.gnu.org/ 49. ../17_intro/DESIGN
50. http://gcc.gnu.org/gcc-2.95/buildstat.html 50. http://gcc.gnu.org/
51. http://gcc.gnu.org/libstdc++/ 51. http://gcc.gnu.org/gcc-2.95/buildstat.html
52. http://gcc.gnu.org/libstdc++/download.html 52. http://gcc.gnu.org/libstdc++/
53. http://gcc.gnu.org/libstdc++/ 53. http://gcc.gnu.org/libstdc++/download.html
54. ../17_intro/contribute.html 54. http://gcc.gnu.org/libstdc++/
55. http://www.boost.org/ 55. ../17_intro/contribute.html
56. http://gcc.gnu.org/fom_serv/cache/33.html 56. http://www.boost.org/
57. mailto:libstdc++@gcc.gnu.org 57. http://gcc.gnu.org/fom_serv/cache/33.html
58. mailto:pme@gcc.gnu.org 58. mailto:libstdc++@gcc.gnu.org
59. mailto:gdr@gcc.gnu.org 59. mailto:pme@gcc.gnu.org
60. ../17_intro/license.html 60. mailto:gdr@gcc.gnu.org
61. ../documentation.html 61. ../17_intro/license.html
62. ../17_intro/RELEASE-NOTES 62. ../documentation.html
63. http://www.gnu.org/software/cvs/cvs.html 63. ../17_intro/RELEASE-NOTES
64. http://www.cvshome.org/ 64. http://www.gnu.org/software/cvs/cvs.html
65. ../18_support/howto.html 65. http://www.cvshome.org/
66. http://gcc.gnu.org/install/configure.html 66. ../18_support/howto.html
67. http://gcc.gnu.org/bugs.html 67. http://gcc.gnu.org/cgi-bin/htsearch?method=and&format=builtin-long&sort=score&words=_XOPEN_SOURCE+Solaris
68. http://gcc.gnu.org/ml/libstdc++/2002-02/msg00034.html 68. http://gcc.gnu.org/install/configure.html
69. http://gcc.gnu.org/ml/libstdc++/1998/msg00006.html 69. http://gcc.gnu.org/bugs.html
70. http://www.cantrip.org/draft-bugs.txt 70. http://gcc.gnu.org/ml/libstdc++/2002-02/msg00034.html
71. http://anubis.dkuug.dk/jtc1/sc22/wg21/ 71. http://gcc.gnu.org/ml/libstdc++/1998/msg00006.html
72. ../faq/index.html#5_2 72. http://www.cantrip.org/draft-bugs.txt
73. ../ext/howto.html#5 73. http://anubis.dkuug.dk/jtc1/sc22/wg21/
74. http://gcc.gnu.org/ml/libstdc++/2001-01/msg00247.html 74. ../faq/index.html#5_2
75. http://gcc.gnu.org/gnatswrite.html 75. ../ext/howto.html#5
76. http://gcc.gnu.org/ml/gcc/2000-10/msg00732.html 76. http://gcc.gnu.org/ml/libstdc++/2001-01/msg00247.html
77. ../faq/index.html#4_4_interface 77. http://gcc.gnu.org/gnatswrite.html
78. ../19_diagnostics/howto.html#3 78. http://gcc.gnu.org/ml/gcc/2000-10/msg00732.html
79. http://gcc.gnu.org/contribute.html 79. ../faq/index.html#4_4_interface
80. ../17_intro/contribute.html 80. ../19_diagnostics/howto.html#3
81. ../faq/index.html#2_4 81. http://gcc.gnu.org/contribute.html
82. ../ext/howto.html#5 82. ../17_intro/contribute.html
83. http://gcc.gnu.org/ml/libstdc++/1999/msg00080.html 83. ../faq/index.html#2_4
84. http://gcc.gnu.org/ml/libstdc++/1999/msg00084.html 84. ../ext/howto.html#5
85. http://www.sgi.com/Technology/STL/ 85. http://gcc.gnu.org/ml/libstdc++/1999/msg00080.html
86. ../ext/howto.html 86. http://gcc.gnu.org/ml/libstdc++/1999/msg00084.html
87. ../17_intro/howto.html#3 87. http://www.sgi.com/Technology/STL/
88. ../23_containers/howto.html#3 88. ../ext/howto.html
89. ../27_io/howto.html#9 89. ../17_intro/howto.html#3
90. http://www.ansi.org/ 90. ../23_containers/howto.html#3
91. http://webstore.ansi.org/ansidocstore/product.asp?sku=ISO%2FIEC+14882%2D1998 91. ../27_io/howto.html#9
92. http://www.iso.ch/ 92. http://www.ansi.org/
93. ../17_intro/license.html 93. http://webstore.ansi.org/ansidocstore/product.asp?sku=ISO%2FIEC+14882%2D1998
94. mailto:libstdc++@gcc.gnu.org 94. http://www.iso.ch/
95. ../17_intro/license.html
96. mailto:libstdc++@gcc.gnu.org

5
libstdc++-v3/include/bits/basic_string.h
View file

@ -731,7 +731,7 @@ namespace std
// string::iterator, _CharT*, etc. // string::iterator, _CharT*, etc.
template<class _FwdIter> template<class _FwdIter>
static _CharT* static _CharT*
_S_construct(_FwdIter __end, _FwdIter __beg, const _Alloc& __a, _S_construct(_FwdIter __beg, _FwdIter __end, const _Alloc& __a,
forward_iterator_tag); forward_iterator_tag);
static _CharT* static _CharT*
@ -879,7 +879,7 @@ namespace std
int int
compare(const _CharT* __s) const; compare(const _CharT* __s) const;
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS // _GLIBCPP_RESOLVE_LIB_DEFECTS
// 5. String::compare specification questionable // 5. String::compare specification questionable
int int
compare(size_type __pos, size_type __n1, const _CharT* __s) const; compare(size_type __pos, size_type __n1, const _CharT* __s) const;
@ -887,7 +887,6 @@ namespace std
int int
compare(size_type __pos, size_type __n1, const _CharT* __s, compare(size_type __pos, size_type __n1, const _CharT* __s,
size_type __n2) const; size_type __n2) const;
#endif
}; };

1
libstdc++-v3/include/bits/locale_facets.tcc
View file

@ -41,7 +41,6 @@
#include <cmath> // For ceil #include <cmath> // For ceil
#include <cctype> // For isspace #include <cctype> // For isspace
#include <limits> // For numeric_limits #include <limits> // For numeric_limits
#include <memory> // For auto_ptr
#include <bits/streambuf_iterator.h> #include <bits/streambuf_iterator.h>
#include <vector> #include <vector>
#include <typeinfo> // For bad_cast. #include <typeinfo> // For bad_cast.

2
libstdc++-v3/include/bits/ostream.tcc
View file

@ -464,8 +464,8 @@ namespace std
// 129. Need error indication from seekp() and seekg() // 129. Need error indication from seekp() and seekg()
if (__err == pos_type(off_type(-1))) if (__err == pos_type(off_type(-1)))
this->setstate(ios_base::failbit); this->setstate(ios_base::failbit);
}
#endif #endif
}
return *this; return *this;
} }

291
libstdc++-v3/include/bits/stl_algo.h
View file

@ -144,8 +144,7 @@ namespace std
* @return @p f. * @return @p f.
* *
* Applies the function object @p f to each element in the range * Applies the function object @p f to each element in the range
* @p [first,last). * @p [first,last). @p f must not modify the order of the sequence.
* @p f must not modify its argument.
* If @p f has a return value it is ignored. * If @p f has a return value it is ignored.
*/ */
template<typename _InputIter, typename _Function> template<typename _InputIter, typename _Function>
@ -1388,8 +1387,12 @@ __result, __binary_pred, _IterType());
return __result; return __result;
} }
/// This is a helper function for the rotate algorithm specialized on RAIs.
/**
* @maint
* This is a helper function for the rotate algorithm specialized on RAIs.
* @endmaint
*/
template<typename _EuclideanRingElement> template<typename _EuclideanRingElement>
_EuclideanRingElement _EuclideanRingElement
__gcd(_EuclideanRingElement __m, _EuclideanRingElement __n) __gcd(_EuclideanRingElement __m, _EuclideanRingElement __n)
@ -1402,6 +1405,11 @@ __result, __binary_pred, _IterType());
return __m; return __m;
} }
/**
* @maint
* This is a helper function for the rotate algorithm.
* @endmaint
*/
template<typename _ForwardIter> template<typename _ForwardIter>
void void
__rotate(_ForwardIter __first, __rotate(_ForwardIter __first,
@ -1430,6 +1438,11 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* This is a helper function for the rotate algorithm.
* @endmaint
*/
template<typename _BidirectionalIter> template<typename _BidirectionalIter>
void void
__rotate(_BidirectionalIter __first, __rotate(_BidirectionalIter __first,
@ -1458,6 +1471,11 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* This is a helper function for the rotate algorithm.
* @endmaint
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
void void
__rotate(_RandomAccessIter __first, __rotate(_RandomAccessIter __first,
@ -1519,6 +1537,15 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @brief TODO
* @param first A forward iterator.
* @param middle A forward iterator.
* @param last A forward iterator.
* @return Nothing.
*
* @doctodo
*/
template<typename _ForwardIter> template<typename _ForwardIter>
inline void inline void
rotate(_ForwardIter __first, _ForwardIter __middle, _ForwardIter __last) rotate(_ForwardIter __first, _ForwardIter __middle, _ForwardIter __last)
@ -1530,6 +1557,16 @@ __result, __binary_pred, _IterType());
__rotate(__first, __middle, __last, _IterType()); __rotate(__first, __middle, __last, _IterType());
} }
/**
* @brief TODO
* @param first A forward iterator.
* @param middle A forward iterator.
* @param last A forward iterator.
* @param result An output iterator.
* @return TODO
*
* @doctodo
*/
template<typename _ForwardIter, typename _OutputIter> template<typename _ForwardIter, typename _OutputIter>
_OutputIter _OutputIter
rotate_copy(_ForwardIter __first, _ForwardIter __middle, rotate_copy(_ForwardIter __first, _ForwardIter __middle,
@ -1543,9 +1580,16 @@ __result, __binary_pred, _IterType());
return copy(__first, __middle, copy(__middle, __last, __result)); return copy(__first, __middle, copy(__middle, __last, __result));
} }
// Return a random number in the range [0, __n). This function encapsulates
// whether we're using rand (part of the standard C library) or lrand48 /**
// (not standard, but a much better choice whenever it's available). * @maint
* Return a random number in the range [0, __n). This function encapsulates
* whether we're using rand (part of the standard C library) or lrand48
* (not standard, but a much better choice whenever it's available).
*
* XXX There is no corresponding encapsulation fn to seed the generator.
* @endmaint
*/
template<typename _Distance> template<typename _Distance>
inline _Distance inline _Distance
__random_number(_Distance __n) __random_number(_Distance __n)
@ -1557,8 +1601,15 @@ __result, __binary_pred, _IterType());
#endif #endif
} }
/// 25.2.11 random_shuffle().
/**
* @brief TODO
* @param first A forward iterator.
* @param last A forward iterator.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
inline void inline void
random_shuffle(_RandomAccessIter __first, _RandomAccessIter __last) random_shuffle(_RandomAccessIter __first, _RandomAccessIter __last)
@ -1572,6 +1623,15 @@ __result, __binary_pred, _IterType());
iter_swap(__i, __first + __random_number((__i - __first) + 1)); iter_swap(__i, __first + __random_number((__i - __first) + 1));
} }
/**
* @brief TODO
* @param first A forward iterator.
* @param last A forward iterator.
* @param rand The RNG functor or function.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter, typename _RandomNumberGenerator> template<typename _RandomAccessIter, typename _RandomNumberGenerator>
void void
random_shuffle(_RandomAccessIter __first, _RandomAccessIter __last, random_shuffle(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1586,8 +1646,12 @@ __result, __binary_pred, _IterType());
iter_swap(__i, __first + __rand((__i - __first) + 1)); iter_swap(__i, __first + __rand((__i - __first) + 1));
} }
// partition, stable_partition, and their auxiliary functions
/**
* @maint
* This is a helper function...
* @endmaint
*/
template<typename _ForwardIter, typename _Predicate> template<typename _ForwardIter, typename _Predicate>
_ForwardIter _ForwardIter
__partition(_ForwardIter __first, _ForwardIter __last, __partition(_ForwardIter __first, _ForwardIter __last,
@ -1610,6 +1674,11 @@ __result, __binary_pred, _IterType());
return __first; return __first;
} }
/**
* @maint
* This is a helper function...
* @endmaint
*/
template<typename _BidirectionalIter, typename _Predicate> template<typename _BidirectionalIter, typename _Predicate>
_BidirectionalIter _BidirectionalIter
__partition(_BidirectionalIter __first, _BidirectionalIter __last, __partition(_BidirectionalIter __first, _BidirectionalIter __last,
@ -1637,6 +1706,15 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @brief TODO
* @param first A forward iterator.
* @param last A forward iterator.
* @param pred A predicate functor.
* @return TODO
*
* @doctodo
*/
template<typename _ForwardIter, typename _Predicate> template<typename _ForwardIter, typename _Predicate>
inline _ForwardIter inline _ForwardIter
partition(_ForwardIter __first, _ForwardIter __last, partition(_ForwardIter __first, _ForwardIter __last,
@ -1651,6 +1729,11 @@ __result, __binary_pred, _IterType());
} }
/**
* @maint
* This is a helper function...
* @endmaint
*/
template<typename _ForwardIter, typename _Predicate, typename _Distance> template<typename _ForwardIter, typename _Predicate, typename _Distance>
_ForwardIter _ForwardIter
__inplace_stable_partition(_ForwardIter __first, _ForwardIter __last, __inplace_stable_partition(_ForwardIter __first, _ForwardIter __last,
@ -1671,6 +1754,11 @@ __result, __binary_pred, _IterType());
return __begin; return __begin;
} }
/**
* @maint
* This is a helper function...
* @endmaint
*/
template<typename _ForwardIter, typename _Pointer, typename _Predicate, template<typename _ForwardIter, typename _Pointer, typename _Predicate,
typename _Distance> typename _Distance>
_ForwardIter _ForwardIter
@ -1711,6 +1799,15 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @brief TODO
* @param first A forward iterator.
* @param last A forward iterator.
* @param pred A predicate functor.
* @return TODO
*
* @doctodo
*/
template<typename _ForwardIter, typename _Predicate> template<typename _ForwardIter, typename _Predicate>
_ForwardIter _ForwardIter
stable_partition(_ForwardIter __first, _ForwardIter __last, stable_partition(_ForwardIter __first, _ForwardIter __last,
@ -1739,6 +1836,11 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* This is a helper function...
* @endmaint
*/
template<typename _RandomAccessIter, typename _Tp> template<typename _RandomAccessIter, typename _Tp>
_RandomAccessIter _RandomAccessIter
__unguarded_partition(_RandomAccessIter __first, _RandomAccessIter __last, __unguarded_partition(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1757,6 +1859,11 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* This is a helper function...
* @endmaint
*/
template<typename _RandomAccessIter, typename _Tp, typename _Compare> template<typename _RandomAccessIter, typename _Tp, typename _Compare>
_RandomAccessIter _RandomAccessIter
__unguarded_partition(_RandomAccessIter __first, _RandomAccessIter __last, __unguarded_partition(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1775,10 +1882,20 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* @doctodo
* This controls some aspect of the sort routines.
* @endmaint
*/
extern const int __stl_threshold; extern const int __stl_threshold;
// sort() and its auxiliary functions. /**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Tp> template<typename _RandomAccessIter, typename _Tp>
void void
__unguarded_linear_insert(_RandomAccessIter __last, _Tp __val) __unguarded_linear_insert(_RandomAccessIter __last, _Tp __val)
@ -1793,6 +1910,11 @@ __result, __binary_pred, _IterType());
*__last = __val; *__last = __val;
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Tp, typename _Compare> template<typename _RandomAccessIter, typename _Tp, typename _Compare>
void void
__unguarded_linear_insert(_RandomAccessIter __last, _Tp __val, _Compare __comp) __unguarded_linear_insert(_RandomAccessIter __last, _Tp __val, _Compare __comp)
@ -1807,6 +1929,11 @@ __result, __binary_pred, _IterType());
*__last = __val; *__last = __val;
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
void void
__insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last) __insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last)
@ -1825,6 +1952,11 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
void void
__insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last, __insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1844,6 +1976,11 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
inline void inline void
__unguarded_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last) __unguarded_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last)
@ -1854,6 +1991,11 @@ __result, __binary_pred, _IterType());
__unguarded_linear_insert(__i, _ValueType(*__i)); __unguarded_linear_insert(__i, _ValueType(*__i));
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
inline void inline void
__unguarded_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last, __unguarded_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1865,6 +2007,11 @@ __result, __binary_pred, _IterType());
__unguarded_linear_insert(__i, _ValueType(*__i), __comp); __unguarded_linear_insert(__i, _ValueType(*__i), __comp);
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
void void
__final_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last) __final_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last)
@ -1877,6 +2024,11 @@ __result, __binary_pred, _IterType());
__insertion_sort(__first, __last); __insertion_sort(__first, __last);
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
void void
__final_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last, __final_insertion_sort(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1890,6 +2042,11 @@ __result, __binary_pred, _IterType());
__insertion_sort(__first, __last, __comp); __insertion_sort(__first, __last, __comp);
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _Size> template<typename _Size>
inline _Size inline _Size
__lg(_Size __n) __lg(_Size __n)
@ -1899,6 +2056,11 @@ __result, __binary_pred, _IterType());
return __k; return __k;
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Size> template<typename _RandomAccessIter, typename _Size>
void void
__introsort_loop(_RandomAccessIter __first, _RandomAccessIter __last, __introsort_loop(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1922,6 +2084,11 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @maint
* This is a helper function for the sort routine.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Size, typename _Compare> template<typename _RandomAccessIter, typename _Size, typename _Compare>
void void
__introsort_loop(_RandomAccessIter __first, _RandomAccessIter __last, __introsort_loop(_RandomAccessIter __first, _RandomAccessIter __last,
@ -1946,6 +2113,14 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @brief TODO
* @param first An iterator.
* @param last Another iterator.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
inline void inline void
sort(_RandomAccessIter __first, _RandomAccessIter __last) sort(_RandomAccessIter __first, _RandomAccessIter __last)
@ -1963,6 +2138,15 @@ __result, __binary_pred, _IterType());
} }
} }
/**
* @brief TODO
* @param first An iterator.
* @param last Another iterator.
* @param comp A comparison functor.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
inline void inline void
sort(_RandomAccessIter __first, _RandomAccessIter __last, _Compare __comp) sort(_RandomAccessIter __first, _RandomAccessIter __last, _Compare __comp)
@ -1980,8 +2164,12 @@ __result, __binary_pred, _IterType());
} }
} }
// stable_sort() and its auxiliary functions.
/**
* @maint
* This is a helper function for the stable sorting routines.
* @endmaint
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
void void
__inplace_stable_sort(_RandomAccessIter __first, _RandomAccessIter __last) __inplace_stable_sort(_RandomAccessIter __first, _RandomAccessIter __last)
@ -1998,6 +2186,11 @@ __result, __binary_pred, _IterType());
__last - __middle); __last - __middle);
} }
/**
* @maint
* This is a helper function for the stable sorting routines.
* @endmaint
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
void void
__inplace_stable_sort(_RandomAccessIter __first, _RandomAccessIter __last, __inplace_stable_sort(_RandomAccessIter __first, _RandomAccessIter __last,
@ -2171,6 +2364,14 @@ __result, __binary_pred, _IterType());
__comp); __comp);
} }
/**
* @brief TODO
* @param first An iterator.
* @param last Another iterator.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
inline void inline void
stable_sort(_RandomAccessIter __first, _RandomAccessIter __last) stable_sort(_RandomAccessIter __first, _RandomAccessIter __last)
@ -2190,6 +2391,15 @@ __result, __binary_pred, _IterType());
__stable_sort_adaptive(__first, __last, buf.begin(), _DistanceType(buf.size())); __stable_sort_adaptive(__first, __last, buf.begin(), _DistanceType(buf.size()));
} }
/**
* @brief TODO
* @param first An iterator.
* @param last Another iterator.
* @param comp A comparison functor.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
inline void inline void
stable_sort(_RandomAccessIter __first, _RandomAccessIter __last, _Compare __comp) stable_sort(_RandomAccessIter __first, _RandomAccessIter __last, _Compare __comp)
@ -2211,6 +2421,15 @@ __result, __binary_pred, _IterType());
__comp); __comp);
} }
/**
* @brief TODO
* @param first An iterator.
* @param middle Another iterator.
* @param last Another iterator.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
void void
partial_sort(_RandomAccessIter __first, partial_sort(_RandomAccessIter __first,
@ -2231,6 +2450,16 @@ __result, __binary_pred, _IterType());
sort_heap(__first, __middle); sort_heap(__first, __middle);
} }
/**
* @brief TODO
* @param first An iterator.
* @param middle Another iterator.
* @param last Another iterator.
* @param comp A comparison functor.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
void void
partial_sort(_RandomAccessIter __first, partial_sort(_RandomAccessIter __first,
@ -2253,6 +2482,16 @@ __result, __binary_pred, _IterType());
sort_heap(__first, __middle, __comp); sort_heap(__first, __middle, __comp);
} }
/**
* @brief TODO
* @param first An input iterator.
* @param last Another input iterator.
* @param result_first A random-access iterator.
* @param result_last Another random-access iterator.
* @return TODO
*
* @doctodo
*/
template<typename _InputIter, typename _RandomAccessIter> template<typename _InputIter, typename _RandomAccessIter>
_RandomAccessIter _RandomAccessIter
partial_sort_copy(_InputIter __first, _InputIter __last, partial_sort_copy(_InputIter __first, _InputIter __last,
@ -2288,6 +2527,17 @@ __result, __binary_pred, _IterType());
return __result_real_last; return __result_real_last;
} }
/**
* @brief TODO
* @param first An input iterator.
* @param last Another input iterator.
* @param result_first A random-access iterator.
* @param result_last Another random-access iterator.
* @param comp A comparison functor.
* @return TODO
*
* @doctodo
*/
template<typename _InputIter, typename _RandomAccessIter, typename _Compare> template<typename _InputIter, typename _RandomAccessIter, typename _Compare>
_RandomAccessIter _RandomAccessIter
partial_sort_copy(_InputIter __first, _InputIter __last, partial_sort_copy(_InputIter __first, _InputIter __last,
@ -2326,6 +2576,15 @@ __result, __binary_pred, _IterType());
return __result_real_last; return __result_real_last;
} }
/**
* @brief TODO
* @param first An iterator.
* @param nth Another iterator.
* @param last Another iterator.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter> template<typename _RandomAccessIter>
void void
nth_element(_RandomAccessIter __first, nth_element(_RandomAccessIter __first,
@ -2352,6 +2611,16 @@ __result, __binary_pred, _IterType());
__insertion_sort(__first, __last); __insertion_sort(__first, __last);
} }
/**
* @brief TODO
* @param first An iterator.
* @param nth Another iterator.
* @param last Another iterator.
* @param comp A comparison functor.
* @return Nothing.
*
* @doctodo
*/
template<typename _RandomAccessIter, typename _Compare> template<typename _RandomAccessIter, typename _Compare>
void void
nth_element(_RandomAccessIter __first, nth_element(_RandomAccessIter __first,

2
libstdc++-v3/include/std/std_sstream.h
View file

@ -124,7 +124,7 @@ namespace std
// NB: Start ostringstream buffers at 512 bytes. This is an // NB: Start ostringstream buffers at 512 bytes. This is an
// experimental value (pronounced "arbitrary" in some of the // experimental value (pronounced "arbitrary" in some of the
// hipper english-speaking countries), and can be changed to // hipper english-speaking countries), and can be changed to
// suite particular needs. // suit particular needs.
_M_buf_size_opt = 512; _M_buf_size_opt = 512;
_M_mode = __mode; _M_mode = __mode;
if (_M_mode & (ios_base::ate | ios_base::app)) if (_M_mode & (ios_base::ate | ios_base::app))

1
libstdc++-v3/src/locale.cc
View file

@ -36,7 +36,6 @@
#include <istream> #include <istream>
#include <ostream> #include <ostream>
#include <vector> #include <vector>
#include <memory> // for auto_ptr
#ifdef _GLIBCPP_USE_WCHAR_T #ifdef _GLIBCPP_USE_WCHAR_T
# include <cwctype> // for towupper, etc. # include <cwctype> // for towupper, etc.
#endif #endif