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invoke.texi: Document -Wdiscarded-array-qualifiers.
[official-gcc.git]
/
gcc
/
testsuite
/
gcc.dg
/
errno-1.c
blob
46236ef5123aad8969f71f88bd877858d31566c5
1
/* { dg-do compile } */
2
/* { dg-options "-O2" } */
3
4
#include <errno.h>
5
#include <stdlib.h>
6
7
void
do_not_optimize_away
();
8
9
int
main
()
10
{
11
void
*
volatile
p
;
12
errno
=
0
;
13
p
=
malloc
(-
1
);
14
if
(
errno
!=
0
)
15
do_not_optimize_away
();
16
return
0
;
17
}
18
19
/* { dg-final { scan-assembler "do_not_optimize_away" } } */