nuclear@6: #include <stdlib.h>
nuclear@6: #include <ctype.h>
nuclear@6: 
nuclear@6: int atoi(const char *str)
nuclear@6: {
nuclear@6: 	return atol(str);
nuclear@6: }
nuclear@6: 
nuclear@6: long atol(const char *str)
nuclear@6: {
nuclear@6: 	long acc = 0;
nuclear@6: 	int sign = 1;
nuclear@6: 
nuclear@6: 	while(isspace(*str)) str++;
nuclear@6: 
nuclear@6: 	if(*str == '+') {
nuclear@6: 		str++;
nuclear@6: 	} else if(*str == '-') {
nuclear@6: 		sign = -1;
nuclear@6: 		str++;
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	while(*str && isdigit(*str)) {
nuclear@6: 		acc = acc * 10 + (*str - '0');
nuclear@6: 		str++;
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	return sign > 0 ? acc : -acc;
nuclear@6: }
nuclear@6: 
nuclear@6: void itoa(int val, char *buf, int base)
nuclear@6: {
nuclear@6: 	static char rbuf[16];
nuclear@6: 	char *ptr = rbuf;
nuclear@6: 	int neg = 0;
nuclear@6: 
nuclear@6: 	if(val < 0) {
nuclear@6: 		neg = 1;
nuclear@6: 		val = -val;
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	if(val == 0) {
nuclear@6: 		*ptr++ = '0';
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	while(val) {
nuclear@6: 		int digit = val % base;
nuclear@6: 		*ptr++ = digit < 10 ? (digit + '0') : (digit - 10 + 'a');
nuclear@6: 		val /= base;
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	if(neg) {
nuclear@6: 		*ptr++ = '-';
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	ptr--;
nuclear@6: 
nuclear@6: 	while(ptr >= rbuf) {
nuclear@6: 		*buf++ = *ptr--;
nuclear@6: 	}
nuclear@6: 	*buf = 0;
nuclear@6: }
nuclear@6: 
nuclear@6: void utoa(unsigned int val, char *buf, int base)
nuclear@6: {
nuclear@6: 	static char rbuf[16];
nuclear@6: 	char *ptr = rbuf;
nuclear@6: 
nuclear@6: 	if(val == 0) {
nuclear@6: 		*ptr++ = '0';
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	while(val) {
nuclear@6: 		unsigned int digit = val % base;
nuclear@6: 		*ptr++ = digit < 10 ? (digit + '0') : (digit - 10 + 'a');
nuclear@6: 		val /= base;
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	ptr--;
nuclear@6: 
nuclear@6: 	while(ptr >= rbuf) {
nuclear@6: 		*buf++ = *ptr--;
nuclear@6: 	}
nuclear@6: 	*buf = 0;
nuclear@6: }
nuclear@6: