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Fix LWG 2934 - optional<const T> doesn't compare with T

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@299105 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2017-03-30 20:06:52 +00:00
parent 5612bd42dc
commit 2b3c1c4d9b
14 changed files with 577 additions and 443 deletions
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94
test/std/utilities/optional/optional.relops/not_equal.pass.cpp
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@@ -18,57 +18,69 @@
using std::optional;
struct X
{
int i_;
struct X {
int i_;
constexpr X(int i) : i_(i) {}
constexpr X(int i) : i_(i) {}
};
constexpr bool operator != ( const X &lhs, const X &rhs )
{ return lhs.i_ != rhs.i_ ; }
constexpr bool operator!=(const X& lhs, const X& rhs) {
return lhs.i_ != rhs.i_;
}
int main()
{
{
int main() {
{
typedef X T;
typedef optional<T> O;
constexpr O o1; // disengaged
constexpr O o2; // disengaged
constexpr O o3{1}; // engaged
constexpr O o4{2}; // engaged
constexpr O o5{1}; // engaged
constexpr O o1; // disengaged
constexpr O o2; // disengaged
constexpr O o3{1}; // engaged
constexpr O o4{2}; // engaged
constexpr O o5{1}; // engaged
static_assert ( !(o1 != o1), "" );
static_assert ( !(o1 != o2), "" );
static_assert ( (o1 != o3), "" );
static_assert ( (o1 != o4), "" );
static_assert ( (o1 != o5), "" );
static_assert(!(o1 != o1), "");
static_assert(!(o1 != o2), "");
static_assert((o1 != o3), "");
static_assert((o1 != o4), "");
static_assert((o1 != o5), "");
static_assert ( !(o2 != o1), "" );
static_assert ( !(o2 != o2), "" );
static_assert ( (o2 != o3), "" );
static_assert ( (o2 != o4), "" );
static_assert ( (o2 != o5), "" );
static_assert(!(o2 != o1), "");
static_assert(!(o2 != o2), "");
static_assert((o2 != o3), "");
static_assert((o2 != o4), "");
static_assert((o2 != o5), "");
static_assert ( (o3 != o1), "" );
static_assert ( (o3 != o2), "" );
static_assert ( !(o3 != o3), "" );
static_assert ( (o3 != o4), "" );
static_assert ( !(o3 != o5), "" );
static_assert((o3 != o1), "");
static_assert((o3 != o2), "");
static_assert(!(o3 != o3), "");
static_assert((o3 != o4), "");
static_assert(!(o3 != o5), "");
static_assert ( (o4 != o1), "" );
static_assert ( (o4 != o2), "" );
static_assert ( (o4 != o3), "" );
static_assert ( !(o4 != o4), "" );
static_assert ( (o4 != o5), "" );
static_assert((o4 != o1), "");
static_assert((o4 != o2), "");
static_assert((o4 != o3), "");
static_assert(!(o4 != o4), "");
static_assert((o4 != o5), "");
static_assert ( (o5 != o1), "" );
static_assert ( (o5 != o2), "" );
static_assert ( !(o5 != o3), "" );
static_assert ( (o5 != o4), "" );
static_assert ( !(o5 != o5), "" );
}
static_assert((o5 != o1), "");
static_assert((o5 != o2), "");
static_assert(!(o5 != o3), "");
static_assert((o5 != o4), "");
static_assert(!(o5 != o5), "");
}
{
using O1 = optional<int>;
using O2 = optional<long>;
constexpr O1 o1(42);
static_assert(o1 != O2(101), "");
static_assert(!(O2(42) != o1), "");
}
{
using O1 = optional<int>;
using O2 = optional<const int>;
constexpr O1 o1(42);
static_assert(o1 != O2(101), "");
static_assert(!(O2(42) != o1), "");
}
}