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Add detection of wostream operator<< (#650)

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This commit is contained in:
Victor Zverovich
2018-02-17 09:03:43 +00:00
parent 1efc15c177
commit 91721caa42
4 changed files with 17 additions and 16 deletions
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2
test/ostream-test.cc
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@@ -53,7 +53,7 @@ std::ostream &operator<<(std::ostream &os, TestEnum) {
enum TestEnum2 {A};
TEST(OStreamTest, Enum) {
EXPECT_FALSE(fmt::internal::convert_to_int<TestEnum>::value);
EXPECT_FALSE((fmt::internal::convert_to_int<TestEnum, char>::value));
EXPECT_EQ("TestEnum", fmt::format("{}", TestEnum()));
EXPECT_EQ("0", fmt::format("{}", A));
}

8
test/util-test.cc
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@@ -843,15 +843,15 @@ TEST(UtilTest, ReportWindowsError) {
enum TestEnum2 {};
TEST(UtilTest, ConvertToInt) {
EXPECT_FALSE(fmt::internal::convert_to_int<char>::value);
EXPECT_FALSE(fmt::internal::convert_to_int<const char *>::value);
EXPECT_TRUE(fmt::internal::convert_to_int<TestEnum2>::value);
EXPECT_FALSE((fmt::internal::convert_to_int<char, char>::value));
EXPECT_FALSE((fmt::internal::convert_to_int<const char *, char>::value));
EXPECT_TRUE((fmt::internal::convert_to_int<TestEnum2, char>::value));
}
#if FMT_USE_ENUM_BASE
enum TestEnum : char {TestValue};
TEST(UtilTest, IsEnumConvertibleToInt) {
EXPECT_TRUE(fmt::internal::convert_to_int<TestEnum>::value);
EXPECT_TRUE((fmt::internal::convert_to_int<TestEnum, char>::value));
}
#endif