clang/test/Sema/incompatible-function-pointer-types.c

   1 // RUN: %clang_cc1 -fsyntax-only %s -Wincompatible-pointer-types -verify=hard,expected
   2 // RUN: %clang_cc1 -fsyntax-only %s -Wno-error=incompatible-pointer-types -verify=soft,expected
   3 // RUN: %clang_cc1 -fsyntax-only %s -Wincompatible-function-pointer-types -verify=hard,expected
   4 // RUN: %clang_cc1 -fsyntax-only %s -Wno-error=incompatible-function-pointer-types -verify=soft,expected
   5
   6 // This test ensures that the subgroup of -Wincompatible-pointer-types warnings
   7 // that concern function pointers can be promoted (or not promoted) to an error
   8 // *separately* from the other -Wincompatible-pointer-type warnings.
   9 typedef int (*MyFnTyA)(int *, char *);
  10
  11 int bar(char *a, int *b) { return 0; }
  12 int foo(MyFnTyA x) { return 0; } // expected-note {{passing argument to parameter 'x' here}}
  13
  14 void baz(void) {
  15   foo(&bar); // soft-warning {{incompatible function pointer types passing 'int (*)(char *, int *)' to parameter of type 'MyFnTyA' (aka 'int (*)(int *, char *)')}} \
  16                 hard-error {{incompatible function pointer types passing 'int (*)(char *, int *)' to parameter of type 'MyFnTyA' (aka 'int (*)(int *, char *)')}}
  17 }