gcc/testsuite/gcc.dg/pr37186.c

   1 /* PR 37186 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wall -Werror -Wno-error=pointer-sign" } */
   4
   5 int foo(signed char *); /* { dg-message "note: expected 'signed char \\*' but argument is of type 'unsigned char \\*'" } */
   6 int bar(unsigned char *p)
   7 {
   8   return foo(p); /* { dg-warning "pointer targets in passing argument 1 of 'foo' differ in signedness" } */
   9 }