int ft_atoi_base(const char *str, int base)
{
int i;
int sign;
i = -1;
sign = 1;
if (base > 0 && base < 17)
{
if (!ft_strncmp(str, "0x", 2) || !ft_strncmp(str, "0X", 2))
i += 2;
while (str[++i])
{
if (ft_ishexa(str[i]))
return (sign * ft_calc(str, i, base));
if (str[i] == '-' || str[i] == '+')
{
if (!ft_ishexa(str[i + 1]))
return (0);
sign = 44 - str[i];
}
else if (!ft_is_space(str[i]))
return (0);
}
}
return (0);
}
int ft_atoi_more(const char *str)
{
int neg;
long nb;
int base;
neg = 1;
nb = 0;
base = 10;
while (*str == ' ' || (*str > 8 && *str < 14))
str++;
if (*str == '-' || *str == '+')
neg = 44 - *str++;
if (*str == '0' && (*str++))
{
if ((*str == 'x' || *str == 'X') && (*str++))
base = 16;
else if (*str == 'b' && (*str++))
base = 2;
else if (ft_isocta(*str))
base = 8;
}
while ((base == 10 && ft_isdigit(*str)) || (base == 2 && ft_isbin(*str)) ||
(base == 8 && ft_isocta(*str)) || (base == 16 && ft_ishexa(*str)))
nb = nb * base + nb_atoi(*str++, base);
return (neg * nb);
}
int ft_atoi_b(const char *str, int base)
{
int s;
int n;
int h;
h = 0;
s = 1;
n = 0;
if (str && base > 1 && base < 17)
{
while ((*str >= 9 && *str <= 13) || *str == ' ')
str++;
if (((s = (*str == '-' ? -1 : 1)) == -1 || *str == '+') && base == 10)
str++;
if (base == 16 && (h = ft_ishexa((char *)str)))
str += 2;
h -= 2;
while (ft_isdigit(*str) || h-- > 0)
{
if (ft_isdigit(*str))
n = n * base + (*str++ - '0');
if (base > 10 && ft_isalpha(*str))
n = n * base + (ft_tolower(*str++) - 'a' + 10);
}
}
return (s * n);
}
static int ft_calc(const char *str, int i, int base)
{
int n;
int pow;
int tmp;
n = 0;
i -= 1;
pow = -1;
while (ft_ishexa(str[++i]))
;
while (ft_ishexa(str[--i]))
{
if ((tmp = ft_base(str[i], base)) == -1)
break ;
n += (ft_power(base, ++pow)) * tmp;
}
return (n);
}
intmax_t ft_xtoi(char *x)
{
intmax_t n;
int i;
if (!ft_ishexa(x[0]))
return (-1);
n = 0;
i = -1;
while (ft_ishexa(x[i += 1]))
{
n *= 16;
if (ft_isdigit(x[i]))
n += x[i] - 48;
else if ((x[i] >= 'A') && (x[i] <= 'F'))
n += x[i] - 55;
else
n += x[i] - 87;
}
return (n);
}
static int ft_convert_base(char *str)
{
int *nbrs;
int i;
int len;
int r_value;
i = 0;
r_value = 0;
len = ft_hexalen((char *)str);
nbrs = ft_nbrnew(len);
while (str[i] && ft_ishexa(str[i]))
{
nbrs[i] = ft_hexa(str[i]) * ft_power(16, (len - 1) - i);
i++;
}
i = 0;
while (str[i] && ft_ishexa(str[i]))
{
r_value += nbrs[i];
i++;
}
return (r_value);
}
int ft_atoi_hexa(const char *str)
{
int result;
int sign;
sign = 1;
result = 0;
if (ft_strlen(str) == 0)
return (0);
if ((*str == '-' || *str == '+'))
{
(*str == '-') ? sign = -1 : 0;
str++;
}
if (ft_ishexa(*str))
result = ft_convert_base((char *)str);
return (result * sign);
}
