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add try_emplace and insert_or_assign functions #27

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Matvey Cherevko
2019-06-03 00:12:40 +07:00
parent 8237a106ea
commit d7ecb21109
3 changed files with 80 additions and 0 deletions
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28
untests/flat_map_tests.cpp
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@@ -369,6 +369,34 @@ TEST_CASE("flat_map") {
s1.insert(sorted_range, {{1,3},{2,2},{2,2},{3,1}});
REQUIRE(s1 == map_t{{1,3},{2,2},{3,1}});
}
{
map_t s0;
auto i0 = s0.insert_or_assign(1, 4);
REQUIRE(i0 == std::make_pair(s0.begin(), true));
REQUIRE(s0 == map_t{{1,4}});
auto i1 = s0.insert_or_assign(1, 8);
REQUIRE(i1 == std::make_pair(s0.begin(), false));
REQUIRE(s0 == map_t{{1,8}});
const obj_t k0{2};
auto i2 = s0.insert_or_assign(k0, 6);
REQUIRE(i2 == std::make_pair(s0.begin() + 1, true));
REQUIRE(s0 == map_t{{1,8}, {2,6}});
auto i3 = s0.insert_or_assign(k0, 2);
REQUIRE(i3 == std::make_pair(s0.begin() + 1, false));
REQUIRE(s0 == map_t{{1,8}, {2,2}});
}
{
map_t s0;
auto i0 = s0.try_emplace(1, 4);
REQUIRE(i0 == std::make_pair(s0.begin(), true));
REQUIRE(s0 == map_t{{1,4}});
auto i1 = s0.try_emplace(1, 8);
REQUIRE(i1 == std::make_pair(s0.begin(), false));
REQUIRE(s0 == map_t{{1,4}});
}
}
SECTION("erasers") {
using map_t = flat_map<int, unsigned>;