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Workaround an issue with mixing std versions in gcc (#2017)

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This commit is contained in:
Victor Zverovich 2020-11-14 09:02:14 -08:00
parent a57baa69a5
commit df66516ed3
2 changed files with 7 additions and 14 deletions
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14
include/fmt/format.h
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@ -1145,8 +1145,8 @@ template <typename T = void> struct null {};
template <typename Char> struct fill_t {
private:
enum { max_size = 4 };
Char data_[max_size];
unsigned char size_;
Char data_[max_size] = {Char(' '), Char(0), Char(0), Char(0)};
unsigned char size_ = 1;
public:
FMT_CONSTEXPR void operator=(basic_string_view<Char> s) {
@ -1166,13 +1166,6 @@ template <typename Char> struct fill_t {
FMT_CONSTEXPR const Char& operator[](size_t index) const {
return data_[index];
}
static FMT_CONSTEXPR fill_t<Char> make() {
auto fill = fill_t<Char>();
fill[0] = Char(' ');
fill.size_ = 1;
return fill;
}
};
} // namespace detail
@ -1204,8 +1197,7 @@ template <typename Char> struct basic_format_specs {
type(0),
align(align::none),
sign(sign::none),
alt(false),
fill(detail::fill_t<Char>::make()) {}
alt(false) {}
};
using format_specs = basic_format_specs<char>;

7
test/format-test.cc
View File

@ -2423,17 +2423,17 @@ TEST(FormatTest, CharTraitsIsNotAmbiguous) {
#endif
}
#if __cplusplus > 201103L
struct custom_char {
int value;
custom_char() = default;
template <typename T> custom_char(T val) : value(static_cast<int>(val)) {}
template <typename T>
constexpr custom_char(T val) : value(static_cast<int>(val)) {}
operator int() const { return value; }
};
int to_ascii(custom_char c) { return c; }
FMT_BEGIN_NAMESPACE
template <> struct is_char<custom_char> : std::true_type {};
FMT_END_NAMESPACE
@ -2444,6 +2444,7 @@ TEST(FormatTest, FormatCustomChar) {
EXPECT_EQ(result.size(), 1);
EXPECT_EQ(result[0], custom_char('x'));
}
#endif
// Convert a char8_t string to std::string. Otherwise GTest will insist on
// inserting `char8_t` NTBS into a `char` stream which is disabled by P1423.