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[RFA]: Add declaration for `alloca' to stdlib.h
- To: newlib at sources dot redhat dot com
- Subject: [RFA]: Add declaration for `alloca' to stdlib.h
- From: Corinna Vinschen <vinschen at redhat dot com>
- Date: Mon, 12 Nov 2001 13:58:58 +0100
- Reply-to: newlib <newlib at sources dot redhat dot com>
[Get raw message]
Hi,
newlib omits a declaration for alloca() in stdlib.h as it's described
e.g. in the Linux man pages.
The following patch to libc/include/stdlib.h does that. It declares
alloca() as external unless __GNUC__ is defined. In that case alloca()
is defined as __builtin_alloca().
Another way to implement that would be to include <alloca.h> if the
system has that file (as e.g. for linux in libc/sys/linux/include).
If you prefer that, I will propose another patch which only includes
alloca.h for Linux and Cygwin and add a alloca.h file to libc/sys/cygwin.
Corinna
2001-11-12 Corinna Vinschen <vinschen@redhat.com>
* libc/include/stdlib.h: Add declaration for alloca().
Index: libc/include/stdlib.h
===================================================================
RCS file: /cvs/src/src/newlib/libc/include/stdlib.h,v
retrieving revision 1.11
diff -u -p -r1.11 stdlib.h
--- stdlib.h 2001/10/01 18:05:09 1.11
+++ stdlib.h 2001/11/12 12:50:04
@@ -45,6 +45,12 @@ extern __IMPORT int __mb_cur_max;
_VOID _EXFUN(abort,(_VOID) _ATTRIBUTE ((noreturn)));
int _EXFUN(abs,(int));
+#ifdef __GNUC__
+#define alloca(size) __builtin_alloca(size)
+#else
+void * _EXFUN(alloca,(size_t));
+#endif
+
int _EXFUN(atexit,(_VOID (*__func)(_VOID)));
double _EXFUN(atof,(const char *__nptr));
#ifndef __STRICT_ANSI__
--
Corinna Vinschen
Cygwin Developer
Red Hat, Inc.
mailto:vinschen@redhat.com