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Exos Part 1 (Ex 0 - 6 + Ex 9)

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lclerel- lclerel-
2026-03-10 14:28:28 +01:00
commit 7dc4a73af7
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55
ex0/ft_str_is_alpha.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_alpha.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 09:59:54 by lclerel- #+# #+# */
/* Updated: 2026/03/10 13:14:35 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
/*void ft_putchar(char chara)
{
write(1, &chara, 1);
}*/
int ft_str_is_alpha(char *str)
{
int i;
int is_low;
int is_up;
i = 0;
while (str[i] != '\0' )
{
is_up = (str[i] >= 'a' && str[i] <= 'z');
is_low = (str[i] >= 'A' && str[i] <= 'Z');
if (!(is_up || is_low))
{
return (0);
}
i++;
}
return (1);
}
/*int main(void)
{
char *str;
str = "LumiTest123";
write(1, "Test avec LumiTest123 : ", 16);
ft_putchar(ft_str_is_alpha(str) + '0');
write(1, "\n", 1);
write(1, "Output = 0 car y'as des chiffres", 32);
write(1, "\n", 1);
str = "LumiTest";
write(1, "Test avec LumiTest : ", 21);
ft_putchar(ft_str_is_alpha(str) + '0');
write(1, "\n", 1);
write(1, "Output = 1 car y'as pas de chiffres", 35);
}*/

53
ex1/ft_str_is_numeric.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_numeric.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 09:59:54 by lclerel- #+# #+# */
/* Updated: 2026/03/10 11:31:44 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
/*void ft_putchar(char chara)
{
write(1, &chara, 1);
}*/
int ft_str_is_numeric(char *str)
{
int i;
int is_num;
i = 0;
while (str[i] != '\0' )
{
is_num = (str[i] >= '0' && str[i] <= '9');
if (!(is_num))
{
return (0);
}
i++;
}
return (1);
}
/*int main(void)
{
char *str;
str = "123";
write(1, "Test avec 123 : ", 16);
ft_putchar(ft_str_is_numeric(str) + '0');
write(1, "\n", 1);
write(1, "Output = 1 car y'as des chiffres", 32);
write(1, "\n", 1);
str = "LumiTest";
write(1, "Test avec LumiTest : ", 21);
ft_putchar(ft_str_is_numeric(str) + '0');
write(1, "\n", 1);
write(1, "Output = 0 car y'as pas de chiffres", 35);
}*/

53
ex2/ft_str_is_lowercase.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_lowercase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 09:59:54 by lclerel- #+# #+# */
/* Updated: 2026/03/10 13:15:46 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
/*void ft_putchar(char chara)
{
write(1, &chara, 1);
}*/
int ft_str_is_lowercase(char *str)
{
int i;
int is_low;
i = 0;
while (str[i] != '\0' )
{
is_low = (str[i] >= 'a' && str[i] <= 'z');
if (!(is_low))
{
return (0);
}
i++;
}
return (1);
}
/*int main(void)
{
char *str;
str = "LumiTest123";
write(1, "Test avec LumiTest123 : ", 24);
ft_putchar(ft_str_is_lowercase(str) + '0');
write(1, "\n", 1);
write(1, "Output = 0 car y'as des majuscules", 34);
write(1, "\n", 1);
str = "lumitest";
write(1, "Test avec lumitest : ", 21);
ft_putchar(ft_str_is_lowercase(str) + '0');
write(1, "\n", 1);
write(1, "Output = 1 car y'as pas de majuscules", 37);
}*/

53
ex3/ft_str_is_uppercase.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_uppercase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 09:59:54 by lclerel- #+# #+# */
/* Updated: 2026/03/10 11:43:39 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
/*void ft_putchar(char chara)
{
write(1, &chara, 1);
}*/
int ft_str_is_uppercase(char *str)
{
int i;
int is_up;
i = 0;
while (str[i] != '\0' )
{
is_up = (str[i] >= 'A' && str[i] <= 'Z');
if (!(is_up))
{
return (0);
}
i++;
}
return (1);
}
/*int main(void)
{
char *str;
str = "LumiTest123";
write(1, "Test avec LumiTest123 : ", 24);
ft_putchar(ft_str_is_uppercase(str) + '0');
write(1, "\n", 1);
write(1, "Output = 0 car y'as des minuscules", 34);
write(1, "\n", 1);
str = "LUMITEST";
write(1, "Test avec LUMITEST : ", 21);
ft_putchar(ft_str_is_uppercase(str) + '0');
write(1, "\n", 1);
write(1, "Output = 1 car y'as pas de minuscules", 37);
}*/

59
ex4/ft_str_is_printable.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_printable.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 12:02:31 by lclerel- #+# #+# */
/* Updated: 2026/03/10 13:16:41 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
/*void ft_putchar(char chara)
{
write(1, &chara, 1);
}*/
int ft_str_is_printable(char *str)
{
int i;
int is_print;
i = 0;
while (str[i] != '\0' )
{
is_print = (str[i] >= 32 && str[i] <= 126);
if (!(is_print))
{
return (0);
}
i++;
}
return (1);
}
/*int main(void)
{
char *str;
str = "LumiTest123\n";
write(1, "Test avec LumiTest123 (Backslash n) : ", 38);
ft_putchar(ft_str_is_printable(str) + '0');
write(1, "\n", 1);
write(1, "Output = 0 car y'as un non-printable", 36);
write(1, "\n", 1);
str = "LumiTest123";
write(1, "Test avec LumiTest123 : ", 24);
ft_putchar(ft_str_is_printable(str) + '0');
write(1, "\n", 1);
write(1, "Output = 1 car y'as pas de non-printable", 40);
write(1, "\n", 1);
str = "";
write(1, "Test avec Rien (NULL) : ", 24);
ft_putchar(ft_str_is_printable(str) + '0');
write(1, "\n", 1);
write(1, "Output = 1 car le sujet dis que NULL = 1", 40);
}*/

62
ex5/ft_strupcase.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strupcase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 12:39:09 by lclerel- #+# #+# */
/* Updated: 2026/03/10 13:13:29 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
/*void ft_putchar(char chara)
{
write(1, &chara, 1);
}
void ft_putstr(char *str)
{
int i;
i = 0;
while (str[i])
{
ft_putchar(str[i]);
i++;
}
}*/
char *ft_strupcase(char *str)
{
int i;
int is_low;
i = 0;
while (str[i] != '\0' )
{
is_low = (str[i] >= 'a' && str[i] <= 'z');
if (is_low)
{
str[i] = str[i] - 32;
}
i++;
}
return (str);
}
/*int main(void)
{
char str[] = "LumiTest123";
write(1, "Test avec LumiTest123 : ", 24);
write(1, "\n", 1);
write(1, "Avant : ", 8);
ft_putstr(str);
ft_strupcase(str);
write(1, "\n", 1);
write(1, "Apres : ", 8);
ft_putstr(str);
}*/

62
ex6/ft_strlowcase.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strlowcase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 12:39:09 by lclerel- #+# #+# */
/* Updated: 2026/03/10 13:18:39 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
/*void ft_putchar(char chara)
{
write(1, &chara, 1);
}
void ft_putstr(char *str)
{
int i;
i = 0;
while (str[i])
{
ft_putchar(str[i]);
i++;
}
}*/
char *ft_lowcase(char *str)
{
int i;
int is_up;
i = 0;
while (str[i] != '\0' )
{
is_up = (str[i] >= 'A' && str[i] <= 'Z');
if (is_up)
{
str[i] = str[i] + 32;
}
i++;
}
return (str);
}
/*int main(void)
{
char str[] = "LumiTest123";
write(1, "Test avec LumiTest123 : ", 24);
write(1, "\n", 1);
write(1, "Avant : ", 8);
ft_putstr(str);
ft_strlowcase(str);
write(1, "\n", 1);
write(1, "Apres : ", 8);
ft_putstr(str);
}*/

38
ex9/ft_putstr.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_putstr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2026/03/10 14:04:52 by lclerel- #+# #+# */
/* Updated: 2026/03/10 14:21:43 by lclerel- ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
void ft_putchar(char chara)
{
write(1, &chara, 1);
}
void ft_putstr(char *str)
{
int i;
i = 0;
while (str[i])
{
ft_putchar(str[i]);
i++;
}
}
/*int main(void)
{
char str[] = "Test_Lumi";
write(1, "Test avec Test_Lumi : ", 24);
ft_putstr(str);
}*/