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Make char8_t a strongly-typed enum

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This commit is contained in:
Victor Zverovich 2018-09-29 16:25:02 -07:00
parent 66992e90d2
commit e4fea22d15
3 changed files with 9 additions and 14 deletions
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2
include/fmt/format-inl.h
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@ -206,7 +206,7 @@ FMT_FUNC size_t internal::count_code_points(u8string_view s) {
const char8_t *data = s.data();
int num_code_points = 0;
for (size_t i = 0, size = s.size(); i != size; ++i) {
if ((data[i].value & 0xc0) != 0x80)
if ((data[i] & 0xc0) != 0x80)
++num_code_points;
}
return num_code_points;

7
include/fmt/format.h
View File

@ -437,12 +437,7 @@ void basic_buffer<T>::append(const U *begin, const U *end) {
} // namespace internal
// A UTF-8 code unit type.
struct char8_t {
char value;
FMT_CONSTEXPR FMT_EXPLICIT operator bool() const FMT_NOEXCEPT {
return value != 0;
}
};
enum char8_t: unsigned char {};
// A UTF-8 string view.
class u8string_view : public basic_string_view<char8_t> {

14
test/format-test.cc
View File

@ -2407,17 +2407,17 @@ TEST(FormatTest, ConstructU8StringViewFromCString) {
fmt::u8string_view s("ab");
EXPECT_EQ(s.size(), 2u);
const fmt::char8_t *data = s.data();
EXPECT_EQ(data[0].value, 'a');
EXPECT_EQ(data[1].value, 'b');
EXPECT_EQ(data[0], 'a');
EXPECT_EQ(data[1], 'b');
}
TEST(FormatTest, ConstructU8StringViewFromDataAndSize) {
fmt::u8string_view s("foobar", 3);
EXPECT_EQ(s.size(), 3u);
const fmt::char8_t *data = s.data();
EXPECT_EQ(data[0].value, 'f');
EXPECT_EQ(data[1].value, 'o');
EXPECT_EQ(data[2].value, 'o');
EXPECT_EQ(data[0], 'f');
EXPECT_EQ(data[1], 'o');
EXPECT_EQ(data[2], 'o');
}
#if FMT_USE_USER_DEFINED_LITERALS
@ -2426,7 +2426,7 @@ TEST(FormatTest, U8StringViewLiteral) {
fmt::u8string_view s = "ab"_u;
EXPECT_EQ(s.size(), 2u);
const fmt::char8_t *data = s.data();
EXPECT_EQ(data[0].value, 'a');
EXPECT_EQ(data[1].value, 'b');
EXPECT_EQ(data[0], 'a');
EXPECT_EQ(data[1], 'b');
}
#endif