From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.c-torture/execute/va-arg-21.c | 48 +++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/va-arg-21.c (limited to 'gcc/testsuite/gcc.c-torture/execute/va-arg-21.c') diff --git a/gcc/testsuite/gcc.c-torture/execute/va-arg-21.c b/gcc/testsuite/gcc.c-torture/execute/va-arg-21.c new file mode 100644 index 000000000..044541ba8 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/va-arg-21.c @@ -0,0 +1,48 @@ +/* Copyright (C) 2000 Free Software Foundation. + + If the argument to va_end() has side effects, test whether side + effects from that argument are honored. + + Written by Kaveh R. Ghazi, 10/31/2000. */ + +#include +#include +#include + +#ifndef __GNUC__ +#define __attribute__(x) +#endif + +static void __attribute__ ((__format__ (__printf__, 1, 2))) +doit (const char *s, ...) +{ + va_list *ap_array[3], **ap_ptr = ap_array; + + ap_array[0] = malloc (sizeof(va_list)); + ap_array[1] = NULL; + ap_array[2] = malloc (sizeof(va_list)); + + va_start (*ap_array[0], s); + vprintf (s, **ap_ptr); + /* Increment the va_list pointer once. */ + va_end (**ap_ptr++); + + /* Increment the va_list pointer a second time. */ + ap_ptr++; + + va_start (*ap_array[2], s); + /* If we failed to increment ap_ptr twice, then the parameter passed + in here will dereference NULL and should cause a crash. */ + vprintf (s, **ap_ptr); + va_end (**ap_ptr); + + /* Just in case, If *ap_ptr is NULL abort anyway. */ + if (*ap_ptr == 0) + abort(); +} + +int main() +{ + doit ("%s", "hello world\n"); + exit (0); +} -- cgit v1.2.3