llvm-project/clang/test/Parser/pragma-weak.c

// RUN: %clang_cc1 -fsyntax-only -verify %s

// Note that this puts the expected lines before the directives to work around
// limitations in the -verify mode.

int x;
/* expected-warning {{expected identifier in '#pragma weak'}}*/ #pragma weak
#pragma weak x

extern int z;
/* expected-warning {{expected identifier in '#pragma weak'}}*/ #pragma weak z = =
/* expected-warning {{expected identifier in '#pragma weak'}}*/ #pragma weak z =
/* expected-warning {{weak identifier 'y' never declared}} */ #pragma weak z = y

extern int a;
/* expected-warning {{extra tokens at end of '#pragma weak'}}*/ #pragma weak a b
/* expected-warning {{extra tokens at end of '#pragma weak'}}*/ #pragma weak a = x c


void pragma_is_not_a_statement(int x)
{
  int t;

  {
    if (x)
#pragma weak t
    else // expected-error {{expected expression}}
#pragma weak t
  }

  switch (x) {
    case 1:
#pragma weak t
  } // expected-error {{expected statement}}
  switch(x) {
    default:
#pragma weak t
  } // expected-error {{expected statement}}

label:
#pragma weak t
} // expected-error {{expected statement}}