clang/test/PCH/macro-undef.cpp

   1 // RUN: %clang_cc1 -std=c++98 -emit-pch -o %t %s
   2 // RUN: %clang_cc1 -std=c++98 -fsyntax-only -include-pch %t %s -Wuninitialized -verify
   3 // RUN: %clang_cc1 -std=c++98 -fsyntax-only -include-pch %t %s -Wuninitialized -fdiagnostics-parseable-fixits 2>&1 | FileCheck %s
   4
   5 // RUN: %clang_cc1 -std=c++98 -emit-pch -fpch-instantiate-templates -o %t %s
   6 // RUN: %clang_cc1 -std=c++98 -fsyntax-only -include-pch %t %s -Wuninitialized -verify
   7 // RUN: %clang_cc1 -std=c++98 -fsyntax-only -include-pch %t %s -Wuninitialized -fdiagnostics-parseable-fixits 2>&1 | FileCheck %s
   8
   9 #ifndef HEADER
  10 #define HEADER
  11
  12 #define NULL 0
  13 template<typename T>
  14 void *f() {
  15   void *p;  // @15
  16   return p; // @16
  17 }
  18 #undef NULL
  19 template<typename T>
  20 void *g() {
  21   void *p;  // @21
  22   return p; // @22
  23 }
  24
  25 #else
  26
  27 // expected-warning@16 {{uninitialized}}
  28 // expected-note@15 {{initialize}}
  29 // CHECK: fix-it:"{{.*}}":{15:10-15:10}:" = NULL"
  30
  31 // expected-warning@22 {{uninitialized}}
  32 // expected-note@21 {{initialize}}
  33 // CHECK: fix-it:"{{.*}}":{21:10-21:10}:" = 0"
  34
  35 int main() {
  36   f<int>(); // expected-note {{instantiation}}
  37   g<int>(); // expected-note {{instantiation}}
  38 }
  39
  40 #endif