Add comment explaining why -std=c++14 is needed.

* testsuite/26_numerics/complex/literals/types.cc: Add comment. From-SVN: r239543

Add comment explaining why -std=c++14 is needed.
* testsuite/26_numerics/complex/literals/types.cc: Add comment. From-SVN: r239543
e30c6e0c · Jonathan Wakely · Jonathan Wakely · 038000bd · e30c6e0c · e30c6e0c
Commit e30c6e0c authored Aug 17, 2016 by Jonathan Wakely Committed by Jonathan Wakely Aug 17, 2016
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libstdc++-v3/ChangeLog
+2 -0

libstdc++-v3/testsuite/26_numerics/complex/literals/types.cc
+3 -1

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--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
 2016-08-17  Jonathan Wakely  <jwakely@redhat.com>

+	* testsuite/26_numerics/complex/literals/types.cc: Add comment.
+
 	* testsuite/21_strings/basic_string_view/operations/rfind/char/2.cc:
 	Remove duplicate dg-options directive.


--- a/libstdc++-v3/testsuite/26_numerics/complex/literals/types.cc
+++ b/libstdc++-v3/testsuite/26_numerics/complex/literals/types.cc
-// { dg-options "-std=c++1y" }
+// Use -std=c++14 explicitly, because -std=gnu++14 enables GNU extension for
+// complex literals, so 1.0if is __complex__ float not std::complex<float>.
+// { dg-options "-std=c++14" }
 // { dg-do compile }

 // Copyright (C) 2013-2016 Free Software Foundation, Inc.