clang/test/SemaCXX/warn-implicit-conversion-floating-point-to-bool.cpp

   1 // RUN: %clang_cc1 -verify -fsyntax-only %s
   2
   3 float foof(float x);
   4 double food(double x);
   5 void foo(bool b, float f);
   6
   7 void bar() {
   8
   9   float c = 1.7;
  10   bool b = c;
  11
  12   double e = 1.7;
  13   b = e;
  14
  15   b = foof(4.0);
  16
  17   b = foof(c < 1); // expected-warning {{implicit conversion turns floating-point number into bool: 'float' to 'bool'}}
  18
  19   b = food(e < 2); // expected-warning {{implicit conversion turns floating-point number into bool: 'double' to 'bool'}}
  20
  21   foo(c, b);    // expected-warning {{implicit conversion turns floating-point number into bool: 'float' to 'bool'}}
  22   foo(c, c);
  23
  24 }