format_floating()

void fl::printf_detail::format_floating	(	sstream &	stream,
		const FormatSpec &	spec,
		const ScalarArg &	a )

Definition at line 176 of file stdio.cpp.hpp.

                                                                                               {
    fl::string result;
    bool is_numeric = false;
 
    switch (spec.type) {
        case 'd':
        case 'i':
        case 'u':
        case 'o':
        case 'c':
            result = "<type_error>";
            break;
 
        case 'x': {
            is_numeric = true;
            const bool is_float = a.kind == ScalarArg::kFloat;
            result = is_float ? fl::to_hex(a.f, spec.uppercase)
                              : fl::to_hex(a.d, spec.uppercase);
            const bool nonzero = is_float ? a.f != 0.0f : a.d != 0.0;
            if (spec.alt_form && nonzero) {
                result = fl::string(spec.uppercase ? "0X" : "0x") + result;
            }
            break;
        }
 
        case 'f': {
            is_numeric = true;
            const float value =
                a.kind == ScalarArg::kFloat ? a.f : static_cast<float>(a.d);
            if (spec.precision >= 0) {
                result = format_float(value, spec.precision);
            } else {
                sstream temp;
                temp << value;
                result = temp.str();
            }
            break;
        }
 
        case 's': {
            sstream temp;
            stream_floating(temp, a);
            result = temp.str();
            break;
        }
 
        default:
            result = "<unknown_format>";
            break;
    }
    emit_padded(stream, spec, result, is_numeric);
}

References fl::FL_NO_EXCEPT, format_float(), fl::printf_detail::ScalarArg::kFloat, fl::sstream::str(), fl::to_hex(), and fl::type_rank< T >::value.

Referenced by format_scalar_arg().

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