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Add missing presentation type checks for std::string (#2402)

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This commit is contained in:
Victor Zverovich 2021-07-02 07:51:04 -07:00
parent 889bbf27a2
commit 1d7384530e
3 changed files with 5 additions and 2 deletions
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4
include/fmt/core.h
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@ -2577,8 +2577,8 @@ FMT_CONSTEXPR auto check_cstring_type_spec(Char spec, ErrorHandler&& eh = {})
return false;
}
template <typename Char, typename ErrorHandler>
FMT_CONSTEXPR void check_string_type_spec(Char spec, ErrorHandler&& eh) {
template <typename Char, typename ErrorHandler = error_handler>
FMT_CONSTEXPR void check_string_type_spec(Char spec, ErrorHandler&& eh = {}) {
if (spec != 0 && spec != 's') eh.on_error("invalid type specifier");
}

1
include/fmt/format.h
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@ -1569,6 +1569,7 @@ FMT_CONSTEXPR auto write(OutputIt out,
basic_string_view<type_identity_t<Char>> s,
const basic_format_specs<Char>& specs, locale_ref)
-> OutputIt {
check_string_type_spec(specs.type);
return write(out, s, specs);
}
template <typename Char, typename OutputIt>

2
test/format-test.cc
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@ -1390,6 +1390,8 @@ TEST(format_test, format_pointer) {
TEST(format_test, format_string) {
EXPECT_EQ("test", fmt::format("{0}", std::string("test")));
EXPECT_THROW(fmt::format(fmt::runtime("{:x}"), std::string("test")),
fmt::format_error);
}
TEST(format_test, format_string_view) {