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d-demangle.c (dlang_parse_real): Remove stack buffer, write the demangled hexadecimal directly to string.

Browse source 
libiberty/ChangeLog:

	* d-demangle.c (dlang_parse_real): Remove stack buffer, write
	the demangled hexadecimal directly to string.
	* testsuite/d-demangle-expected: Add tests.

From-SVN: r248537
This commit is contained in:
Iain Buclaw 2017-05-27 11:29:38 +00:00 • committed by Iain Buclaw
parent b9396a495c
commit 1a122a71ee
3 changed files with 18 additions and 17 deletions
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6
libiberty/ChangeLog
View file

@ -1,3 +1,9 @@
2017-05-27 Iain Buclaw <ibuclaw@gdcproject.org>
* d-demangle.c (dlang_parse_real): Remove stack buffer, write
the demangled hexadecimal directly to string.
* testsuite/d-demangle-expected: Add tests.
2017-05-24 Eli Zaretskii <eliz@gnu.org>
* waitpid.c (wait) [__MINGW32__]: Define as a macro

25
libiberty/d-demangle.c
View file

@ -1025,9 +1025,6 @@ dlang_parse_integer (string *decl, const char *mangled, char type)
static const char *
dlang_parse_real (string *decl, const char *mangled)
{
char buffer[64];
int len = 0;
/* Handle NAN and +-INF. */
if (strncmp (mangled, "NAN", 3) == 0)
{
@ -1051,23 +1048,22 @@ dlang_parse_real (string *decl, const char *mangled)
/* Hexadecimal prefix and leading bit. */
if (*mangled == 'N')
{
buffer[len++] = '-';
string_append (decl, "-");
mangled++;
}
if (!ISXDIGIT (*mangled))
return NULL;
buffer[len++] = '0';
buffer[len++] = 'x';
buffer[len++] = *mangled;
buffer[len++] = '.';
string_append (decl, "0x");
string_appendn (decl, mangled, 1);
string_append (decl, ".");
mangled++;
/* Significand. */
while (ISXDIGIT (*mangled))
{
buffer[len++] = *mangled;
string_appendn (decl, mangled, 1);
mangled++;
}
@ -1075,26 +1071,21 @@ dlang_parse_real (string *decl, const char *mangled)
if (*mangled != 'P')
return NULL;
buffer[len++] = 'p';
string_append (decl, "p");
mangled++;
if (*mangled == 'N')
{
buffer[len++] = '-';
string_append (decl, "-");
mangled++;
}
while (ISDIGIT (*mangled))
{
buffer[len++] = *mangled;
string_appendn (decl, mangled, 1);
mangled++;
}
/* Write out the demangled hexadecimal, rather than trying to
convert the buffer into a floating-point value. */
buffer[len] = '\0';
len = strlen (buffer);
string_appendn (decl, buffer, len);
return mangled;
}

4
libiberty/testsuite/d-demangle-expected
View file

@ -838,6 +838,10 @@ _D8demangle52__T4testVrcN0C4CCCCCCCCCCCCCDP4c0B666666666666666P6Zv
demangle.test!(-0x0.C4CCCCCCCCCCCCCDp4+0x0.B666666666666666p6i)
#
--format=dlang
_D8demangle91__T4testVde000111222333444555666777888999AAABBBCCCDDDEEEFFFP000111222333444555666777888999Zv
demangle.test!(0x0.00111222333444555666777888999AAABBBCCCDDDEEEFFFp000111222333444555666777888999)
#
--format=dlang
_D8demangle22__T4testVG3ua3_616263Zv
demangle.test!("abc")
#