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Separate nonfinite formatting
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@ -1561,6 +1561,22 @@ template <typename OutputIt, typename Char, typename UInt> struct int_writer {
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}
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};
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template <typename Char, typename OutputIt>
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OutputIt write_nonfinite(OutputIt out, bool isinf,
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const basic_format_specs<Char>& specs,
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const float_specs& fspecs) {
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auto str =
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isinf ? (fspecs.upper ? "INF" : "inf") : (fspecs.upper ? "NAN" : "nan");
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constexpr size_t str_size = 3;
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auto sign = fspecs.sign;
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auto size = str_size + (sign ? 1 : 0);
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using iterator = remove_reference_t<decltype(reserve(out, 0))>;
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return write_padded(out, specs, size, [=](iterator it) {
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if (sign) *it++ = static_cast<Char>(data::signs[sign]);
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return copy_str<Char>(str, str + str_size, it);
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});
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}
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template <typename Char, typename OutputIt, typename UIntPtr>
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OutputIt write_ptr(OutputIt out, UIntPtr value,
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const basic_format_specs<Char>* specs) {
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@ -1648,15 +1664,7 @@ template <typename Range> class basic_writer {
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}
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if (!std::isfinite(value)) {
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auto str = std::isinf(value) ? (fspecs.upper ? "INF" : "inf")
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: (fspecs.upper ? "NAN" : "nan");
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constexpr size_t str_size = 3;
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auto sign = fspecs.sign;
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auto size = str_size + (sign ? 1 : 0);
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out_ = write_padded(out_, specs, size, [=](reserve_iterator it) {
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if (sign) *it++ = static_cast<char_type>(data::signs[sign]);
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return copy_str<char_type>(str, str + str_size, it);
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});
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out_ = write_nonfinite(out_, std::isinf(value), specs, fspecs);
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return;
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}
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