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Fix formatting of objects convertible to string_view

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This commit is contained in:
Victor Zverovich 2018-02-19 20:25:56 +00:00
parent e508e30800
commit 24d249b0b4
2 changed files with 11 additions and 1 deletions
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4
include/fmt/core.h
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@ -570,7 +570,8 @@ FMT_MAKE_VALUE(cstring_type, signed char*, const signed char*)
FMT_MAKE_VALUE(cstring_type, const signed char*, const signed char*)
FMT_MAKE_VALUE(cstring_type, unsigned char*, const unsigned char*)
FMT_MAKE_VALUE(cstring_type, const unsigned char*, const unsigned char*)
FMT_MAKE_VALUE(string_type, basic_string_view<Char>, basic_string_view<Char>)
FMT_MAKE_VALUE(string_type, basic_string_view<typename C::char_type>,
basic_string_view<Char>)
FMT_MAKE_VALUE(string_type, const std::basic_string<typename C::char_type>&,
basic_string_view<Char>)
FMT_MAKE_VALUE(pointer_type, void*, const void*)
@ -595,6 +596,7 @@ inline typename std::enable_if<
template <typename C, typename T, typename Char = typename C::char_type>
inline typename std::enable_if<
!convert_to_int<T, Char>::value &&
!std::is_convertible<T, basic_string_view<Char>>::value &&
!std::is_convertible<T, std::basic_string<Char>>::value,
typed_value<C, custom_type>>::type
make_value(const T &val) { return val; }

8
test/format-test.cc
View File

@ -1223,6 +1223,14 @@ TEST(FormatterTest, FormatConvertibleToString) {
EXPECT_EQ("foo", format("{}", ConvertibleToString()));
}
struct ConvertibleToStringView {
operator fmt::string_view() const { return "foo"; }
};
TEST(FormatterTest, FormatConvertibleToStringView) {
EXPECT_EQ("foo", format("{}", ConvertibleToStringView()));
}
namespace fmt {
template <>
struct formatter<Date> {