diff options
Diffstat (limited to 'test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/less_than.pass.cpp')
-rw-r--r-- | test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/less_than.pass.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/less_than.pass.cpp b/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/less_than.pass.cpp new file mode 100644 index 000000000000..42b2730c58cc --- /dev/null +++ b/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/less_than.pass.cpp @@ -0,0 +1,50 @@ +//<=----------------------------------------------------------------------<=// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//<=----------------------------------------------------------------------<=// + +// UNSUPPORTED: c++98, c++03, c++11 + +// <propagate_const> + +// template <class T> constexpr bool operator<(const propagate_const<T>& x, const propagate_const<T>& y); +// template <class T> constexpr bool operator<(const T& x, const propagate_const<T>& y); +// template <class T> constexpr bool operator<(const propagate_const<T>& x, const T& y); + +#include <experimental/propagate_const> +#include "propagate_const_helpers.h" +#include <cassert> + +using std::experimental::propagate_const; + +constexpr bool operator<(const X &lhs, const X &rhs) { + return lhs.i_ < rhs.i_; +} + +int main() { + constexpr X x1_1(1); + constexpr X x2_1(1); + constexpr X x3_2(2); + + static_assert(!(x1_1 < x2_1), ""); + static_assert(x1_1 < x3_2, ""); + + typedef propagate_const<X> P; + + constexpr P p1_1(1); + constexpr P p2_1(1); + constexpr P p3_2(2); + + static_assert(!(p1_1 < p2_1), ""); + static_assert(p1_1 < p3_2, ""); + + static_assert(!(x1_1 < p1_1), ""); + static_assert(x1_1 < p3_2, ""); + + static_assert(!(p1_1 < x1_1), ""); + static_assert(p1_1 < x3_2, ""); +} |