itoa()

int fl::itoa	(	i32	value,
		char *	buffer,
		int	radix )

Convert signed 32-bit integer to string buffer in given radix.

Parameters

value	The integer value to convert
buffer	Output buffer (must be at least 34 bytes for base 2, 12 for base 10, 12 for base 16)
radix	Number base (2-36, typically 10 for decimal, 16 for hex, 8 for octal)

Returns

Number of characters written (excluding null terminator)

Definition at line 68 of file charconv.cpp.hpp.

                                         {
    char tmp[16]; // be careful with the length of the buffer
    char *tp = tmp;
    int i;
    u32 v;
 
    int sign = (radix == 10 && value < 0);
    if (sign)
        v = -static_cast<u32>(value);
    else
        v = static_cast<u32>(value);
 
    while (v || tp == tmp) {
        i = v % radix;
        v = radix ? v / radix : 0;
        if (i < 10)
            *tp++ = i + '0';
        else
            *tp++ = i + 'a' - 10;
    }
 
    int len = tp - tmp;
 
    if (sign) {
        *sp++ = '-';
        len++;
    }
 
    while (tp > tmp)
        *sp++ = *--tp;
 
    *sp = '\0';  // Null-terminate the string
    return len;
}

References sign(), and type_rank< T >::value.

Referenced by fl::sstream::appendFormatted(), fl::basic_string::appendHex(), fl::basic_string::appendOct(), fl::ostream::operator<<(), fl::ostream::operator<<(), fl::ostream::operator<<(), fl::SerialPort::print(), fl::SerialPort::println(), fl::basic_string::write(), and fl::basic_string::write().

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