snprintf() [1/2]

int fl::snprintf	(	char *	buffer,
		fl::size	size,
		const char *	format )

Definition at line 292 of file stdio.cpp.hpp.

                                                                         {
    if (!buffer || size == 0) {
        return 0;
    }
 
    fl::size written = 0;
    const auto append_char = [&](char value) {
        if (written < size - 1) {
            buffer[written++] = value;
        }
    };
    const auto append_text = [&](const char* text) {
        while (*text && written < size - 1) {
            buffer[written++] = *text++;
        }
    };
 
    while (*format && written < size - 1) {
        if (*format == '%') {
            printf_detail::FormatSpec spec =
                printf_detail::parse_format_spec(format);
            append_text(spec.type == '%' ? "%" : "<missing_arg>");
            continue;
        }
        if (format[0] == '{' && format[1] == '{') {
            append_char('{');
            format += 2;
            continue;
        }
        if (format[0] == '}' && format[1] == '}') {
            append_char('}');
            format += 2;
            continue;
        }
        if (format[0] == '{' && format[1] == '}') {
            append_text("<missing_arg>");
            format += 2;
            continue;
        }
        append_char(*format++);
    }
    buffer[written] = '\0';
    return static_cast<int>(written);
}

References FL_NO_EXCEPT, format(), fl::printf_detail::parse_format_spec(), fl::printf_detail::FormatSpec::type, and type_rank< T >::value.

Referenced by fl::net::http::ChunkedWriter::chunkOverhead(), fl::ScopedTrace::dump(), fl::audio::detector::Key::getKeyName(), getPort(), fl::net::http::HttpStreamTransport::idToString(), fl::third_party::TJpgInstanceDecoder::initializeDecoder(), fl::detail::log_format_string(), fl::SerialPort::printf(), fl::third_party::TJpgInstanceDecoder::processChunk(), and fl::net::http::ChunkedWriter::writeChunk().

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