diff options
Diffstat (limited to 'misc/sys/cdefs.h')
| -rw-r--r-- | misc/sys/cdefs.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h index 18143058fa..3c53ca707d 100644 --- a/misc/sys/cdefs.h +++ b/misc/sys/cdefs.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1992-2001, 2002 Free Software Foundation, Inc. +/* Copyright (C) 1992-2001, 2002, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -39,11 +39,20 @@ /* GCC can always grok prototypes. For C++ programs we add throw() to help it optimize the function calls. But this works only with - gcc 2.8.x and egcs. */ -# if defined __cplusplus && __GNUC_PREREQ (2,8) -# define __THROW throw () + gcc 2.8.x and egcs. For gcc 3.2 and up we even mark C functions + as non-throwing using a function attribute since programs can use + the -fexceptions options for C code as well. */ +# if !defined __cplusplus && __GNUC_PREREQ (3, 2) +# define __THROW __attribute__ ((__nothrow__)) +# define __NTH(fct) __attribute__ ((__nothrow__)) fct # else -# define __THROW +# if defined __cplusplus && __GNUC_PREREQ (2,8) +# define __THROW throw () +# define __NTH(fct) fct throw () +# else +# define __THROW +# define __NTH(fct) fct +# endif # endif # define __P(args) args __THROW /* This macro will be used for functions which might take C++ callback @@ -55,6 +64,7 @@ # define __inline /* No inline functions. */ # define __THROW +# define __NTH(fct) fct # define __P(args) args # define __PMT(args) args @@ -149,6 +159,8 @@ #if defined __GNUC__ && __GNUC__ >= 2 # define __REDIRECT(name, proto, alias) name proto __asm__ (__ASMNAME (#alias)) +# define __REDIRECT_NTH(name, proto, alias) \ + name proto __asm__ (__ASMNAME (#alias)) __THROW # define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname) # define __ASMNAME2(prefix, cname) __STRING (prefix) cname |