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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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// PR c++/45385
// { dg-options "-Wconversion" } 

void foo(unsigned char);

class Test
{
  void eval()
  {
    foo(bar());  // { dg-warning "may change value" }
  }

  unsigned int bar() const
  {
    return __INT_MAX__ * 2U + 1;
  }
};