clang/test/Index/pch-warn-as-error-code.cpp

   1 // RUN: rm -f %t.head.h.pch
   2 // RUN: c-index-test -write-pch %t.head.h.pch %s -Wuninitialized -Werror=unused 2>&1 | FileCheck -check-prefix=HEAD_DIAGS %s
   3 // RUN: c-index-test -test-load-source local %s -include %t.head.h -Wuninitialized -Werror=unused 2>&1 | FileCheck -check-prefix=MAIN_DIAGS %s
   4
   5 // Make sure -Wuninitialized works even though the header had a warn-as-error occurrence.
   6
   7 // HEAD_DIAGS: error: unused variable 'x'
   8 // MAIN_DIAGS: warning: variable 'x1' is uninitialized
   9 // MAIN_DIAGS-NOT: error: use of undeclared identifier
  10
  11 #ifndef HEADER
  12 #define HEADER
  13
  14 static void foo_head() {
  15   int x;
  16 }
  17
  18 #else
  19
  20 void test() {
  21   int x1; // expected-note {{initialize}}
  22   int x2 = x1; // expected-warning {{uninitialized}}
  23   (void)x2;
  24   foo_head();
  25 }
  26
  27 #endif