rt_gccstream/gcc/testsuite/gcc.dg/ordered-comparison-3.c

22 lines
607 B
C

/* Test warning for ordered comparison pointer with null pointer constant. */
/* Test with -pedantic-errors. */
/* { dg-do compile } */
/* { dg-options "-pedantic-errors" } */
extern void z();
void *p;
void f() {
if ( z >= 0 ) /* { dg-error "ordered comparison of pointer with" } */
z();
if ( 0 >= z) /* { dg-error "ordered comparison of pointer with" } */
z();
if ( p >= (void*)0 )
z();
if ( (void*)0 >= p)
z();
if (z >= (void*)0) /* { dg-error "distinct pointer types lacks a cast" } */
z();
if ((void*)0 >=z) /* { dg-error "distinct pointer types lacks a cast" } */
z();
}