clang/test/C/C99/n636.c

   1 // RUN: %clang_cc1 -verify %s
   2 // RUN: %clang_cc1 -verify=c2x -std=c2x %s
   3
   4 /* WG14 N636: yes
   5  * remove implicit function declaration
   6  */
   7
   8 void test(void) {
   9   frobble(); // expected-error {{call to undeclared function 'frobble'; ISO C99 and later do not support implicit function declarations}} \
  10                 c2x-error {{undeclared identifier 'frobble'}}
  11 }
  12