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Diffstat (limited to 'gcc/testsuite/gcc.dg/compare6.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/compare6.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/compare6.c b/gcc/testsuite/gcc.dg/compare6.c new file mode 100644 index 000000000..945d28239 --- /dev/null +++ b/gcc/testsuite/gcc.dg/compare6.c @@ -0,0 +1,13 @@ +/* PR c/2098 */ +/* Test for a warning on comparison on out-of-range data. */ +/* { dg-do compile } */ +/* { dg-options "-Wtype-limits" } */ + +signed char sc; +unsigned char uc; + +void foo() +{ + if (sc == 10000) return; /* { dg-warning "always false" "signed" } */ + if (uc == 10000) return; /* { dg-warning "always false" "unsigned" } */ +} |