diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/Wunused-value-2.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/Wunused-value-2.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Wunused-value-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/Wunused-value-2.c new file mode 100644 index 000000000..4858bfade --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/Wunused-value-2.c @@ -0,0 +1,18 @@ +/* Test -Wunused-value. Bug 30729. */ +/* { dg-do compile } */ +/* { dg-options "-Wunused-value" } */ +/* Make sure va_arg does not cause a value computed is not used warning + because it has side effects. */ +#include <stdarg.h> + +int f(int t, ...) +{ + va_list a; + va_start (a, t); + va_arg(a, int);/* { dg-bogus "value computed is not used" } */ + int t1 = va_arg(a, int); + va_end(a); + return t1; +} + + |