ft_itoa.c File Reference

#include "libft.h"

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Functions
static int	count_digits (int n)
char *	ft_itoa (int n)

Function Documentation

count_digits()

static int count_digits ( int  n )

static

Definition at line 23 of file ft_itoa.c.

{
    int count;
 
    count = 0;
    if (n <= 0)
        count = 1;
    else
        count = 0;
    while (n != 0)
    {
        count++;
        n /= 10;
    }
    return (count);
}

Referenced by ft_itoa().

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ft_itoa()

char * ft_itoa

(

int

n

)

Definition at line 40 of file ft_itoa.c.

{
    int     len;
    char    *str;
 
    if (n == INT_MIN)
        return (ft_strdup("-2147483648"));
    if (n == 0)
        return (ft_strdup("0"));
    len = count_digits(n);
    str = (char *)malloc(len + 1);
    if (!str)
        return (NULL);
    str[len--] = '\0';
    if (n < 0)
    {
        str[0] = '-';
        n = -n;
    }
    while (n)
    {
        str[len--] = n % 10 + '0';
        n /= 10;
    }
    return (str);
}

References count_digits(), and ft_strdup().

Referenced by builtin_env(), ft_print_int(), set_shell_var_handler(), and shell_variable_update().

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