format_arg() [1/4]

void fl::printf_detail::format_arg ( sstream & stream, const FormatSpec & spec, const char * arg )

inline

Definition at line 514 of file stdio.h.

                                                                                             {
    fl::string result;
 
    bool is_numeric = false;
 
    switch (spec.type) {
        case 's':
            if (arg) {
                result = arg;
            } else {
                result = "(null)";
            }
            break;
        case 'p': {
            // Pointer format for const char*
            is_numeric = true;
            const void* ptr = static_cast<const void*>(arg);
            fl::uptr addr = reinterpret_cast<fl::uptr>(ptr); // ok reinterpret cast
            result = fl::string("0x") + fl::to_hex(addr, false);
            break;
        }
        case 'x':
            result = "<string_not_hex>";
            break;
        case 'd':
        case 'i':
        case 'u':
        case 'o':
        case 'f':
        case 'c':
            result = "<type_error>";
            break;
        default:
            result = "<unknown_format>";
            break;
    }
 
    // Apply width and padding
    result = apply_width(result, spec, is_numeric);
    stream << result;
}

References apply_width(), FL_NOEXCEPT, and fl::to_hex().

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