diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/pr32207.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr32207.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr32207.c b/gcc/testsuite/gcc.dg/pr32207.c new file mode 100644 index 000000000..cf9bef809 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr32207.c @@ -0,0 +1,9 @@ +/* Test warning for comparison non-null address with null pointer constant. */ +/* Origin: Pawel Sikora <pluto@agmk.net> */ +/* { dg-do compile } */ +/* { dg-options "-Waddress" } */ +extern void z(); + +void f() { if ( z ) z(); } /* { dg-warning "always evaluate as" } */ +void g() { if ( z != 0 ) z(); } /* { dg-warning "the comparison will always evaluate as 'true'" } */ +void h() { if ( z != (void*)0 ) z(); } /* { dg-warning "the comparison will always evaluate as 'true'" } */ |