clang/test/Lexer/gnu-flags.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE
   2 // RUN: %clang_cc1 -fsyntax-only -verify %s -DALL -Wgnu
   3 // RUN: %clang_cc1 -fsyntax-only -verify %s -DALL \
   4 // RUN:   -Wgnu-zero-variadic-macro-arguments \
   5 // RUN:   -Wgnu-zero-line-directive
   6 // RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE -Wgnu \
   7 // RUN:   -Wno-gnu-zero-variadic-macro-arguments \
   8 // RUN:   -Wno-gnu-zero-line-directive
   9 // Additional disabled tests:
  10 // %clang_cc1 -fsyntax-only -verify %s -DZEROARGS -Wgnu-zero-variadic-macro-arguments
  11 // %clang_cc1 -fsyntax-only -verify %s -DLINE0 -Wgnu-zero-line-directive
  12
  13 #if NONE
  14 // expected-no-diagnostics
  15 #endif
  16
  17
  18 #if ALL || ZEROARGS
  19 // expected-warning@+3 {{token pasting of ',' and __VA_ARGS__ is a GNU extension}}
  20 #endif
  21
  22 #define efoo(format, args...) foo(format , ##args)
  23
  24 void foo( const char* c )
  25 {
  26   efoo("6");
  27 }
  28
  29
  30 // This case is handled differently because lit has a bug whereby #line 0 is reported to be on line 4294967295
  31 // http://llvm.org/bugs/show_bug.cgi?id=16952
  32 #if ALL || LINE0
  33 #line 0 // expected-warning {{#line directive with zero argument is a GNU extension}}
  34 #else
  35 #line 0
  36 #endif
  37
  38 // WARNING: Do not add more tests after the #line 0 line!  Add them before the LINE0 test