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issue #60: add non-const if_contains() which can update the mapped_value.

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greg
2020-08-07 12:58:43 -04:00
parent 73c80e4142
commit 7bbf9dc041
2 changed files with 25 additions and 5 deletions
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tests/parallel_hash_map_test.cc
+10 -5
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@@ -13,13 +13,18 @@ TEST(THIS_TEST_NAME, ThreadSafeContains) {
// We can't test mutable keys, or non-copyable keys with ThisMap.
// Test that the nodes have the proper API.
ThisMap<int, int> m = { {1, 7}, {2, 9} };
auto val = 0;
auto func = [&val](int& v) { val = v; };
EXPECT_TRUE(m.if_contains(2, func));
const ThisMap<int, int>& const_m(m);
auto val = 0;
auto get_value = [&val](const int& v) { val = v; };
EXPECT_TRUE(const_m.if_contains(2, get_value));
EXPECT_EQ(val, 9);
EXPECT_FALSE(m.if_contains(3, func));
EXPECT_FALSE(m.if_contains(3, get_value));
auto set_value = [&val](int& v) { v = 11; };
EXPECT_TRUE(m.if_contains(2, set_value));
EXPECT_EQ(m[2], 11);
}
} // namespace