clang/test/Preprocessor/pushable-diagnostics.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s
   2
   3 #pragma clang diagnostic pop // expected-warning{{pragma diagnostic pop could not pop, no matching push}}
   4
   5 #pragma clang diagnostic puhs // expected-warning {{pragma diagnostic expected 'error', 'warning', 'ignored', 'fatal', 'push', or 'pop'}}
   6
   7 int a = 'df'; // expected-warning{{multi-character character constant}}
   8
   9 #pragma clang diagnostic push
  10 #pragma clang diagnostic ignored "-Wmultichar"
  11
  12 int b = 'df'; // no warning.
  13 #pragma clang diagnostic pop
  14
  15 int c = 'df';  // expected-warning{{multi-character character constant}}
  16
  17 #pragma clang diagnostic pop // expected-warning{{pragma diagnostic pop could not pop, no matching push}}
  18
  19 // Test -Weverything
  20
  21 void ppo0(void){} // first verify that we do not give anything on this
  22 #pragma clang diagnostic push // now push
  23
  24 #pragma clang diagnostic warning "-Weverything"
  25 void ppr1(void){} // expected-warning {{no previous prototype for function 'ppr1'}}
  26 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}}
  27
  28 #pragma clang diagnostic push // push again
  29 #pragma clang diagnostic ignored "-Weverything"  // Set to ignore in this level.
  30 void pps2(void){}
  31 #pragma clang diagnostic warning "-Weverything"  // Set to warning in this level.
  32 void ppt2(void){} // expected-warning {{no previous prototype for function 'ppt2'}}
  33 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}}
  34 #pragma clang diagnostic error "-Weverything"  // Set to error in this level.
  35 void ppt3(void){} // expected-error {{no previous prototype for function 'ppt3'}}
  36 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}}
  37 #pragma clang diagnostic pop // pop should go back to warning level
  38
  39 void pps1(void){} // expected-warning {{no previous prototype for function 'pps1'}}
  40 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}}
  41
  42
  43 #pragma clang diagnostic pop // Another pop should disble it again
  44 void ppu(void){}
  45