static    int            ft_itoa_size(int n)
{
    int                size;
    int                neg;

    size = 0;
    neg = 0;
    if (n < 0 && n > -2147483648)
    {
        neg = 1;
        size++;
        n = -n;
    }
    else if (n == 0)
        return (1);
    else if (n == -2147483648)
        return (11);
    while (n >= 1)
    {
        n /= 10;
        size++;
    }
    return (size);
}

char *ft_itoa(int n)
{
    char *str;
    int                i;
    int                size;
    int                neg;
    unsigned int    tmp;

    size = ft_itoa_size(n);
    neg = (n < 0 ? 1 : 0);
    i = 1;
    if (!((str = (char *)malloc(sizeof(char) * ft_itoa_size(n) + 1))))
        return (0);
    tmp = (n < 0 ? -n : n);
    if (tmp == 0)
        str[tmp] = '0';
    while (tmp >= 1)
    {
        str[size - i] = (tmp % 10) + '0';
        tmp /= 10;
        i++;
    }
    if (neg)
        *str = '-';
    str[size] = '\0';
    return (str);
}