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Redefine gdb_static_assert as static_assert

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Since we use C++11, we can use static_assert instead doing the trick
that makes a negative-sized array if the expression is false.
static_assert is built in the language and gives clearer error messages.

To avoid modifying the usages of gdb_static_assert, redefine
gdb_static_assert in terms of static_assert, passing an empty message.
If we want to add an assert with a message, it's always possible to use
static_assert directly.

gdb/ChangeLog:

	* common/gdb_assert.h (gdb_static_assert): Redefine using
	static_assert.
This commit is contained in:
Simon Marchi 2017-12-05 16:15:08 -05:00
parent 798a7429f9
commit ed9376bd95
2 changed files with 6 additions and 2 deletions
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3
gdb/common/gdb_assert.h
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@ -22,8 +22,7 @@
/* A static assertion. This will cause a compile-time error if EXPR,
which must be a compile-time constant, is false. */
#define gdb_static_assert(expr) \
extern int never_defined_just_used_for_checking[(expr) ? 1 : -1]
#define gdb_static_assert(expr) static_assert (expr, "")
/* PRAGMATICS: "gdb_assert.h":gdb_assert() is a lower case (rather
than upper case) macro since that provides the closest fit to the