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dev: Added a ft_itoa_static function to avoid malloc'ing and free'ing every frame

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This commit is contained in:
Theo Champion 2025-08-20 15:29:33 +02:00
parent e8fac75779
commit 9ec4a33fc8
3 changed files with 77 additions and 2 deletions
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3
libft/Makefile
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@ -2,7 +2,8 @@ CC=cc
CFLAGS=-Wall -Wextra -Werror -g -c
SOURCEFILES=src/str/ft_atoi.c src/mem/ft_bzero.c src/mem/ft_calloc.c src/cond/ft_isalnum.c \
src/cond/ft_isalpha.c src/cond/ft_isascii.c src/cond/ft_isdigit.c \
src/cond/ft_isprint.c src/str/ft_itoa.c src/lst/ft_lstadd_back_bonus.c \
src/cond/ft_isprint.c src/str/ft_itoa.c src/str/ft_itoa_static.c \
src/lst/ft_lstadd_back_bonus.c \
src/lst/ft_lstadd_front_bonus.c src/lst/ft_lstclear_bonus.c \
src/lst/ft_lstdelone_bonus.c src/lst/ft_lstiter_bonus.c \
src/lst/ft_lstlast_bonus.c src/lst/ft_lstmap_bonus.c \

3
libft/includes/libft.h
View file

@ -6,7 +6,7 @@
/* By: tchampio <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/10/14 12:40:57 by tchampio #+# #+# */
/* Updated: 2024/12/18 04:40:53 by tchampio ### ########.fr */
/* Updated: 2025/08/20 15:26:09 by tchampio ### ########.fr */
/* */
/* ************************************************************************** */
@ -54,6 +54,7 @@ char *ft_strjoin(const char *s1, const char *s2);
char *ft_strtrim(const char *s1, const char *set);
char **ft_split(const char *s, char separator);
char *ft_itoa(int n);
char *ft_itoa_static(int n, char *string, size_t buffersize);
char *ft_strmapi(const char *s, char (*f)(unsigned int, char));
void ft_striteri(char *s, void (*f)(unsigned int, char *));
void ft_putchar_fd(char c, int fd);

73
libft/src/str/ft_itoa_static.c Normal file
View file

@ -0,0 +1,73 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa_static.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tchampio <tchampio@student.42lehavre.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/08/20 15:19:06 by tchampio #+# #+# */
/* Updated: 2025/08/20 15:27:40 by tchampio ### ########.fr */
/* */
/* ************************************************************************** */
#include "../../includes/libft.h"
#include <stdlib.h>
static size_t getnumberoffigures(int n)
{
size_t totalsize;
long nn;
totalsize = 0;
nn = n;
if (n == 0)
return (1);
if (nn < 0)
{
totalsize++;
nn = -nn;
}
while (nn > 0)
{
nn /= 10;
totalsize++;
}
return (totalsize);
}
static void populate_array(char *s, int n, size_t size)
{
int isneg;
long nn;
size_t index;
nn = n;
if (nn < 0)
nn = -nn;
isneg = (n < 0);
index = size - 1;
while (nn > 0)
{
s[index] = (nn % 10) + '0';
nn /= 10;
index--;
}
if (isneg == 1)
s[index] = '-';
}
char *ft_itoa_static(int n, char *string, size_t buffersize)
{
size_t size;
size = getnumberoffigures(n);
ft_bzero(string, buffersize);
if (!string)
return (NULL);
if (size > buffersize)
return (NULL);
if (n == 0)
ft_strlcpy(string, "0", 2);
populate_array(string, n, size);
return (string);
}