static int nblen(int n)
{
if (n < 0)
return (1 + nblen(-n));
if (n < 10)
return (1);
return (1 + nblen(n / 10));
}
char *ft_itoa(int n)
{
int len;
int neg;
int i;
char *str;
if (n == -2147483648)
return (ft_strdup("-2147483648"));
neg = (n < 0 ? 1 : 0);
len = nblen(n);
str = (char*)malloc(sizeof(*str) * (len + 1));
if (str)
{
n = (n < 0 ? -n : n);
i = len - 1;
while (i >= neg)
{
str[i] = (n % 10) + 48;
n /= 10;
i--;
}
if (neg)
str[0] = '-';
str[len] = '\0';
}
return (str);
}
char *ft_itoa_base(int value, int base)
{
char *res;
int flag;
size_t size;
int i;
if (value == 0)
return (ft_strdup("0"));
else if (value == -2147483648)
return (ft_strdup("-2147483648"));
else
{
flag = (value < 0) ? 1 : 0;
size = nblen(value, base);
if(!(res = (char *)ft_memalloc(size + flag + 1)))
return (NULL);
i = (int)size + flag - 1;
while (value != 0)
{
res[i] = hex(value % base);
value /= base;
i--;
}
res[i] = (flag == 1) ? '-' : res[i];
res[size] = '\0';
}
return (res);
}
