clang/test/SemaCXX/warn-sign-conversion-cpp11.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -Wsign-conversion -std=c++11 %s
   2
   3 unsigned int test() {
   4   short foo;
   5   return foo; // expected-warning {{implicit conversion changes signedness}}
   6
   7 }
   8
   9 unsigned int test3() {
  10   // For a non-defined enum, use the underlying type.
  11   enum u8 : signed char;
  12   u8 foo{static_cast<u8>(0)};
  13   return foo; // expected-warning {{implicit conversion changes signedness}}
  14
  15 }
  16 unsigned int test2() {
  17   // For a non-defined enum, use the underlying type.
  18   enum u8 : unsigned char;
  19   u8 foo{static_cast<u8>(0)};
  20   return foo;
  21 }