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authorJonathan Wakely <jwakely@redhat.com>2019-05-02 22:23:38 +0100
committerJonathan Wakely <redi@gcc.gnu.org>2019-05-02 22:23:38 +0100
commit315f8b5f18dcfcd81401c9629deaf77443fa7c1e (patch)
treec67f2a13583af00c07f97f877c822185815fe380 /gcc/predict.c
parentb752e2c926065820a0086c7a482edf199d79dfc2 (diff)
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PR libstdc++/90314 fix non-equivalent declarations of std::swap
In order to use the _GLIBCXX_NOEXCEPT_IF macro for an expression containing commas I enclosed it in parentheses, so the preprocessor wouldn't treat it as two arguments to the function-like macro. Clang gives an error because now the noexcept-specifier noexcept((C)) is not equivalent to the noexcept(C) one on the declaration of swap in <type_traits>. Instead of requiring extra parentheses around the expression, redefine _GLIBCXX_NOEXCEPT_IF as a variadic macro (even though supporting that in C++98 is a GNU extension). PR libstdc++/90314 * include/bits/c++config (_GLIBCXX_NOEXCEPT_IF): Use variadic macro. * include/bits/move.h (swap): Remove extra parentheses. From-SVN: r270827
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