-/* ANSI and traditional C compatability macros
+/* Compiler compatibility macros
Copyright (C) 1991-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
-/* ANSI and traditional C compatibility macros
-
- ANSI C is assumed if __STDC__ is #defined.
-
- Macro ANSI C definition Traditional C definition
- ----- ---- - ---------- ----------- - ----------
- PTR `void *' `char *'
- const not defined `'
- volatile not defined `'
- signed not defined `'
-
- For ease of writing code which uses GCC extensions but needs to be
+/* For ease of writing code which uses GCC extensions but needs to be
portable to other compilers, we provide the GCC_VERSION macro that
simplifies testing __GNUC__ and __GNUC_MINOR__ together, and various
wrappers around __attribute__. Also, __extension__ will be #defined
#define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#endif /* GCC_VERSION */
-/* All known AIX compilers implement these things (but don't always
- define __STDC__). The RISC/OS MIPS compiler defines these things
- in SVR4 mode, but does not define __STDC__. */
-/* eraxxon@alumni.rice.edu: The Compaq C++ compiler, unlike many other
- C++ compilers, does not define __STDC__, though it acts as if this
- was so. (Verified versions: 5.7, 6.2, 6.3, 6.5) */
-
-#define PTR void *
-
-#undef const
-#undef volatile
-#undef signed
-
/* inline requires special treatment; it's in C99, and GCC >=2.7 supports
it too, but it's not in C89. */
#undef inline