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Don't use stringstream

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This commit is contained in:
Victor Zverovich
2022-09-02 12:58:40 -07:00
parent d6a8704605
commit fc5e59fe4a
3 changed files with 28 additions and 34 deletions
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37
include/fmt/format.h
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@@ -2014,33 +2014,35 @@ auto write_int(OutputIt out, UInt value, unsigned prefix,
});
}
FMT_API auto write_int(unsigned long long value, const format_specs& specs,
locale_ref loc) -> std::string;
template <typename Char>
inline auto write_int(unsigned long long, const basic_format_specs<Char>&,
locale_ref) -> std::string {
return {};
FMT_API auto write_int(appender out, unsigned long long value,
const format_specs& specs, locale_ref loc) -> bool;
template <typename OutputIt, typename Char>
inline auto write_int(OutputIt, unsigned long long,
const basic_format_specs<Char>&, locale_ref) -> bool {
return false;
}
template <typename OutputIt, typename UInt, typename Char>
auto write_int(OutputIt& out, UInt value, unsigned prefix,
const basic_format_specs<Char>& specs, locale_ref loc) -> bool {
auto str = std::string();
auto result = false;
auto buf = memory_buffer();
if (sizeof(value) <= sizeof(unsigned long long))
str = write_int(static_cast<unsigned long long>(value), specs, loc);
if (str.empty()) {
result = write_int(appender(buf), static_cast<unsigned long long>(value),
specs, loc);
if (!result) {
auto grouping = digit_grouping<Char>(loc);
out = write_int(out, value, prefix, specs, grouping);
return true;
}
size_t size = to_unsigned((prefix != 0 ? 1 : 0) + str.size());
size_t size = to_unsigned((prefix != 0 ? 1 : 0) + buf.size());
out = write_padded<align::right>(
out, specs, size, size, [&](reserve_iterator<OutputIt> it) {
if (prefix != 0) {
char sign = static_cast<char>(prefix);
*it++ = static_cast<Char>(sign);
}
return copy_str<Char>(str.data(), str.data() + str.size(), it);
return copy_str<Char>(buf.data(), buf.data() + buf.size(), it);
});
return true;
}
@@ -4180,17 +4182,14 @@ template <typename Locale> class num_format_facet : public Locale::facet {
public:
static FMT_API typename Locale::id id;
using iter_type = std::ostreambuf_iterator<char>;
auto put(iter_type out, unsigned long long val, const format_specs& specs,
Locale& loc) const -> iter_type {
return do_put(out, val, specs, loc);
void put(appender out, unsigned long long val, const format_specs& specs,
Locale& loc) const {
do_put(out, val, specs, loc);
}
protected:
virtual auto do_put(iter_type out, unsigned long long val,
const format_specs& specs, Locale& loc) const
-> iter_type = 0;
virtual void do_put(appender out, unsigned long long val,
const format_specs& specs, Locale& loc) const = 0;
};
#if FMT_USE_USER_DEFINED_LITERALS