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Implement LWG2350: min, max, and minmax should be constexpr.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@201697 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2014-02-19 16:51:35 +00:00
parent a2df82b98e
commit 9d9463a355
13 changed files with 225 additions and 57 deletions
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14
test/algorithms/alg.sorting/alg.min.max/minmax.pass.cpp
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@@ -45,4 +45,18 @@ int main()
test(x, y, y, x);
test(y, x, y, x);
}
#if _LIBCPP_STD_VER > 11
{
// Note that you can't take a reference to a local var, since
// it's address is not a compile-time constant.
constexpr static int x = 1;
constexpr static int y = 0;
constexpr auto p1 = std::minmax (x, y);
static_assert(p1.first == y, "");
static_assert(p1.second == x, "");
constexpr auto p2 = std::minmax (y, x);
static_assert(p2.first == y, "");
static_assert(p2.second == x, "");
}
#endif
}