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Expand documentation of common-utils.h::FUNCTION_NAME

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While looking at this macro, I noticed that it wasn't always necessarily
defined. That prompted me to search the current sources to make sure
that all uses were adequately protected, which they were. But to help
prevent future uses to be made unprotected, this patch expands the
current macro documentation a bit.

gdb/ChangeLog:

        * common/common-utils.h (FUNCTION_NAME): Expand the macro's
        documentation a bit.
This commit is contained in:
Joel Brobecker
2014-01-21 14:20:50 +04:00
parent 7dd9c6eb05
commit 3a80edfc74
2 changed files with 11 additions and 1 deletions
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7
gdb/common/common-utils.h
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@ -25,7 +25,12 @@
#include <stddef.h>
#include <stdarg.h>
/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
/* If possible, define FUNCTION_NAME, a macro containing the name of
the function being defined. Since this macro may not always be
defined, all uses must be protected by appropriate macro definition
checks (Eg: "#ifdef FUNCTION_NAME").
Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
which contains the name of the function currently being defined.
This is broken in G++ before version 2.6.
C9x has a similar variable called __func__, but prefer the GCC one since