标签：ar on c amp ef r as har c语言
k&r习题3-5，机械工业那本中文答案不咋的，只给了处理10进制以下的参考，本答案摘自网上的那本英文习题解答/* itob(n,s,b)
* converts the integer n into a base b char
*/
void itob(int n, char s[], int b)
{
static char digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
int i, sign;
if ( b < 2 || b > 36 ) {
fprintf(stderr, "EX3_5: Cannot support base %d\n", b);
exit(EXIT_FAILURE);
}
if ((sign = n) < 0)
n = -n;
i = 0;
do {
s[i++] = digits[n % b];
} while ((n /= b) > 0);
if (sign < 0)
s[i++] = ‘-‘;
s[i]=‘\0‘;
reverse(s);
}
标签：ar on c amp ef r as har c语言
原文地址：http://my.oschina.net/sukai/blog/313168
