diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/ordered-comparison-1.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/ordered-comparison-1.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/ordered-comparison-1.c b/gcc/testsuite/gcc.dg/ordered-comparison-1.c new file mode 100644 index 000000000..0131c9da8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/ordered-comparison-1.c @@ -0,0 +1,21 @@ +/* Test warning for ordered comparison pointer with null pointer constant. */ +/* Tested with no warning option. */ +/* { dg-do compile } */ +/* { dg-options "" } */ +extern void z(); +void *p; + +void f() { + if (z >= 0) + z(); + if (0 >= z) + z(); + if (p >= (void*)0) + z(); + if ((void*)0 >= p) + z(); + if (z >= (void*)0) /* { dg-warning "distinct pointer types lacks a cast" } */ + z(); + if ((void*)0 >=z) /* { dg-warning "distinct pointer types lacks a cast" } */ + z(); +} |