diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/format/ms_no-exargs-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/format/ms_no-exargs-2.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/format/ms_no-exargs-2.c b/gcc/testsuite/gcc.dg/format/ms_no-exargs-2.c new file mode 100644 index 000000000..654241ddf --- /dev/null +++ b/gcc/testsuite/gcc.dg/format/ms_no-exargs-2.c @@ -0,0 +1,28 @@ +/* Test for warnings for extra format arguments being disabled by + -Wno-format-extra-args. Test which warnings still apply with $ + operand numbers. */ +/* Origin: Joseph Myers <jsm28@cam.ac.uk> */ +/* { dg-do compile { target { *-*-mingw* } } } */ +/* { dg-options "-std=gnu99 -Wformat -Wno-format-extra-args" } */ + +#define USE_SYSTEM_FORMATS +#include "format.h" + +void +foo (int i, int *ip, va_list va) +{ + printf ("%3$d%1$d", i, i, i); /* { dg-warning "before used" "unused $ operand" } */ + printf ("%2$d%1$d", i, i, i); + vprintf ("%3$d%1$d", va); /* { dg-warning "before used" "unused $ operand" } */ + /* With scanf formats, gaps in the used arguments are allowed only if the + arguments are all pointers. In such a case, should only give the lesser + warning about unused arguments rather than the more serious one about + argument gaps. */ + scanf ("%3$d%1$d", ip, ip, ip); + /* If there are non-pointer arguments unused at the end, this is also OK. */ + scanf ("%3$d%1$d", ip, ip, ip, i); + scanf ("%3$d%1$d", ip, i, ip); /* { dg-warning "before used" "unused $ scanf non-pointer operand" } */ + /* Can't check the arguments in the vscanf case, so should suppose the + lesser problem. */ + vscanf ("%3$d%1$d", va); +} |