/*------------------------------------------------------------------------- integer to string conversion Written by: Bela Torok, 1999 bela.torok@kssg.ch usage: _ultoa(unsigned long value, char* string, int radix) _ltoa(long value, char* string, int radix) value -> Number to be converted string -> Result radix -> Base of value (e.g.: 2 for binary, 10 for decimal, 16 for hex) ---------------------------------------------------------------------------*/ #define NUMBER_OF_DIGITS 32 void _ultoa(unsigned long value, char* string, unsigned char radix) { unsigned char index; char buffer[NUMBER_OF_DIGITS]; /* space for NUMBER_OF_DIGITS + '\0' */ index = NUMBER_OF_DIGITS; do { buffer[--index] = '0' + (value % radix); if ( buffer[index] > '9') buffer[index] += 'A' - '9' - 1; value /= radix; } while (value != 0); do { *string++ = buffer[index++]; } while ( index < NUMBER_OF_DIGITS ); *string = 0; /* string terminator */ } void _ltoa(long value, char* string, unsigned char radix) { if (value < 0 && radix == 10) { *string++ = '-'; value = -value; } _ultoa(value, string, radix); }