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re PR c++/84488 (Incorrect "set but not used" warning for static_cast<Enum>(double))

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PR c++/84488
	* g++.dg/warn/Wunused-var-30.C: New test.

From-SVN: r257850
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Jakub Jelinek 2018-02-20 18:00:23 +01:00 committed by Jakub Jelinek
parent ecb0dd1890
commit f210b3b372
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gcc/testsuite/ChangeLog
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2018-02-20 Jakub Jelinek <jakub@redhat.com>
PR c++/84488
* g++.dg/warn/Wunused-var-30.C: New test.
2018-02-20 Richard Sandiford <richard.sandiford@linaro.org>
PR tree-optimization/84419

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gcc/testsuite/g++.dg/warn/Wunused-var-30.C Normal file
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// PR c++/84488
// { dg-do compile }
// { dg-options "-Wunused-but-set-variable" }
int
foo ()
{
enum E { A, B, C, D };
double r = 1.0; // { dg-bogus "set but not used" }
return static_cast<E>(r);
}