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creation du main de testing et du test de abs

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hugogogo
2021-08-10 16:40:52 +02:00
parent bcbe2086f5
commit d8aaada7fc
91 changed files with 4430 additions and 159 deletions
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testing/srcs/test_itoa.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/11/25 13:59:01 by hulamy #+# #+# */
/* Updated: 2020/02/19 15:44:04 by hulamy ### ########.fr */
/* */
/* ************************************************************************** */
/*
** take an integer and give a string
*/
/*
** #include <stdio.h> // for printf
** #include <stdlib.h> // for atoi
**
** char *ft_itoa(long int n);
**
** int main(int ac, char **av)
** {
** if (ac == 0)
** return (0);
** else if (ac == 2)
** printf("%s\n",ft_itoa(atoi(av[1])));
** else
** {
** long int i;
** i = 0;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = 1234567;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = -1234567;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = 237683;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = 2147483647;
** printf("| %li\n| %s\n\n",i,ft_itoa(i));
** i = i ^ 0; // create the opposite of a signed '0', which
** // is 0 followed by 31 '1', the signed int max
** printf("* %li\n* %s\n\n",i,ft_itoa(i));
** i = i ^ 0;
** i = 1 << 31; // change the most lefted bit from '0' (positive)
** // to '1' (negative), the signed int min
** printf("* %li\n* %s\n\n",i,ft_itoa(i));
** i = 2147483646;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = -2147483648;
** printf("| %li\n| %s\n\n",i,ft_itoa(i));
** i = -2147483647;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = 2147483648;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = -2147483649;
** printf(" %li\n %s\n\n",i,ft_itoa(i));
** i = 9223372036854775807;
** printf("| %li\n| %s\n\n",i,ft_itoa(i));
** i = -9223372036854775807;
** printf("| %li\n| %s\n\n",i,ft_itoa(i));
** }
** return 0;
** }
*/
#include "libft.h"
char *ft_itoa(long int n)
{
char *str;
int len;
long int cpy;
char rgt;
cpy = (n < 0) ? (n / 10) * -10 : (n / 10) * 10;
len = (n < 0) ? 2 : 1;
rgt = (n < 0) ? (n % 10) * -1 + '0' : n % 10 + '0';
while (n /= 10)
len++;
if (!(str = (char *)malloc(sizeof(char) * (len + 1))))
return (NULL);
str[len] = '\0';
str[--len] = rgt;
while (cpy /= 10)
str[--len] = cpy % 10 + '0';
if (len)
str[0] = '-';
return (str);
}