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Add new API try_emplace_l (issue #60)

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greg
2020-08-16 18:27:20 -04:00
parent 16a5e67b33
commit 0d229b1159
2 changed files with 47 additions and 3 deletions
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tests/parallel_hash_map_test.cc
+16 -2
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@@ -22,11 +22,25 @@ TEST(THIS_TEST_NAME, ThreadSafeContains) {
EXPECT_FALSE(m.if_contains(3, get_value));
auto set_value = [&val](int& v) { v = 11; };
EXPECT_TRUE(m. modify_if(2, set_value));
auto set_value = [](int& v) { v = 11; };
EXPECT_TRUE(m.modify_if(2, set_value));
EXPECT_EQ(m[2], 11);
EXPECT_FALSE(m.modify_if(3, set_value));
// overwrite an existing value
m.try_emplace_l(2, [](int& v) { v = 5; });
EXPECT_EQ(m[2], 5);
// insert a valye that is not already present
m.try_emplace_l(3, [](int& v) { assert(v == 0); v = 6; });
EXPECT_EQ(m[3], 6);
// insert a valye that is not already present, provide argument to value-construct it
m.try_emplace_l(4, [](int& v) { assert(v == 999); v = 5; }, 999);
EXPECT_EQ(m[4], 5);
}
} // namespace