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view gcc/testsuite/g++.dg/warn/Wstrict-aliasing-float-ref-int-obj.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
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/* { dg-do compile } */
/* { dg-options "-O2 -Wstrict-aliasing -fstrict-aliasing" } */


int foo() {
  int x;
  float& q = reinterpret_cast<float&> (x); /* { dg-message "dereferencing type-punned" "deref" } */
  /* { dg-message "initialized" "note" { xfail *-*-* } .-1 } */
  
  q = 1.0; /* { dg-warning "does break strict-aliasing" "strict-aliasing" { xfail *-*-* } } */
  return x;
}