clang/test/Preprocessor/pragma_diagnostic.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-undef %s
   2 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-undef -Wno-unknown-warning-option -DAVOID_UNKNOWN_WARNING %s
   3
   4 #if FOO    // ok.
   5 #endif
   6
   7 #pragma GCC diagnostic warning "-Wundef"
   8
   9 #if FOO    // expected-warning {{'FOO' is not defined}}
  10 #endif
  11
  12 #pragma GCC diagnostic ignored "-Wun" "def"
  13
  14 #if FOO    // ok.
  15 #endif
  16
  17 #pragma GCC diagnostic error "-Wundef"
  18
  19 #if FOO    // expected-error {{'FOO' is not defined}}
  20 #endif
  21
  22
  23 #define foo error
  24 #pragma GCC diagnostic foo "-Wundef"  // expected-warning {{pragma diagnostic expected 'error', 'warning', 'ignored', 'fatal', 'push', or 'pop'}}
  25
  26 #pragma GCC diagnostic error 42  // expected-error {{expected string literal in pragma diagnostic}}
  27
  28 #pragma GCC diagnostic error "-Wundef" 42  // expected-warning {{unexpected token in pragma diagnostic}}
  29 #pragma GCC diagnostic error "invalid-name"  // expected-warning {{pragma diagnostic expected option name (e.g. "-Wundef")}}
  30
  31 #pragma GCC diagnostic error "-Winvalid-name"
  32 #ifndef AVOID_UNKNOWN_WARNING
  33 // expected-warning@-2 {{unknown warning group '-Winvalid-name', ignored}}
  34 #endif
  35
  36 // From GH13920
  37 #pragma clang diagnostic push ignored "-Wdeprecated-declarations" // expected-warning {{unexpected token in pragma diagnostic}}
  38 #pragma clang diagnostic pop ignored "-Wdeprecated-declarations"  // expected-warning {{unexpected token in pragma diagnostic}}
  39
  40
  41 // Testing pragma clang diagnostic with -Weverything
  42 void ppo(void){} // First test that we do not diagnose on this.
  43
  44 #pragma clang diagnostic warning "-Weverything"
  45 void ppp(void){} // expected-warning {{no previous prototype for function 'ppp'}}
  46 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}}
  47
  48 #pragma clang diagnostic ignored "-Weverything" // Reset it.
  49 void ppq(void){}
  50
  51 #pragma clang diagnostic error "-Weverything" // Now set to error
  52 void ppr(void){} // expected-error {{no previous prototype for function 'ppr'}}
  53 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}}
  54
  55 #pragma clang diagnostic warning "-Weverything" // This should not be effective
  56 void pps(void){} // expected-error {{no previous prototype for function 'pps'}}
  57 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}}