build/clang-plugin/tests/TestNANTestingExpr.cpp

   1 #line 1 "tests/SkScalar.h"
   2 // This checks that the whitelist accounts for #line directives and such. If you
   3 // remove SkScalar from the whitelist, please change the filename here instead
   4 // of adding expected diagnostics.
   5 inline int headerSays(double x) {
   6   return x != x;
   7 }
   8 #line 9 "TestNANTestingExpr.cpp"
   9 void test(bool x);
  10 void foo() {
  11   float f, f2;
  12   typedef double mydouble;
  13   mydouble d;
  14   double d2;
  15   test(f == f); // expected-error{{comparing a floating point value to itself for NaN checking can lead to incorrect results}} expected-note{{consider using std::isnan instead}}
  16   test(d == d); // expected-error{{comparing a floating point value to itself for NaN checking can lead to incorrect results}} expected-note{{consider using std::isnan instead}}
  17   test(f != f); // expected-error{{comparing a floating point value to itself for NaN checking can lead to incorrect results}} expected-note{{consider using std::isnan instead}}
  18   test(d != d); // expected-error{{comparing a floating point value to itself for NaN checking can lead to incorrect results}} expected-note{{consider using std::isnan instead}}
  19   test(f != d);
  20   test(d == (d - f));
  21   test(f == f2);
  22   test(d == d2);
  23   test(d + 1 == d);
  24 }