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sprintf

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This commit is contained in:
Loic Deridder
2025-01-24 13:47:50 +01:00
parent 48aa956d8f
commit 4764c4a679
3 changed files with 181 additions and 0 deletions
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64
sprintf/ft_sprintf.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_sprintf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/01/24 13:46:45 by lderidde #+# #+# */
/* Updated: 2025/01/24 13:46:45 by lderidde ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_sprintf.h"
static int is_spec(char c)
{
if (c == 'c' || c == 's' || c == 'd')
return (1);
return (0);
}
static char *add_arg(char c, char *str, va_list args)
{
if (c == 'c')
return (ft_strfjoinc(str, va_arg(args, int)));
else if (c == 's')
return (ft_strfjoin(str, va_arg(args, char *)));
else if (c == 'd')
return (ft_strfjoind(str, ft_itoa(va_arg(args, int))));
}
static char *build_str(const char *str, va_list args)
{
char *out;
int i;
out = NULL;
i = 0;
while (str[i])
{
if (str[i] == '%' && str[i + 1])
{
if (is_spec(str[++i]))
out = add_arg(str[i], out, args);
else
out = ft_strfjoinc(out, '%');
}
else
out = ft_strfjoinc(out, str[i]);
i++;
}
return (out);
}
char *ft_sprintf(const char *str, ...)
{
va_list args;
char *out;
va_start(args, str);
out = build_str(str, args);
va_end(args);
return (out);
}

25
sprintf/ft_sprintf.h Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_sprintf.h :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/01/24 13:44:08 by lderidde #+# #+# */
/* Updated: 2025/01/24 13:47:01 by lderidde ### ########.fr */
/* */
/* ************************************************************************** */
#ifndef FT_SPRINTF_H
# define FT_SPRINTF_H
# include <stdlib.h>
# include <stdarg.h>
# include <stdio.h>
# include "../lib/libft/libft.h"
char *ft_strfjoin(char *s1, char *s2);
char *ft_strfjoinc(char *s1, char c);
char *ft_strfjoind(char *s1, char *s2);
#endif

92
sprintf/sprintf_utils.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* sprintf_utils.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/01/24 13:44:22 by lderidde #+# #+# */
/* Updated: 2025/01/24 13:47:10 by lderidde ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_sprintf.h"
char *ft_strfjoin(char *s1, char *s2)
{
char *out;
unsigned int i;
unsigned int j;
if (!s1 && !s2)
return (NULL);
if (!s1)
return (ft_strdup(s2));
if (!s2)
return (ft_strdup(s1));
out = ft_calloc(ft_strlen(s1) + ft_strlen(s2) + 1, sizeof(char));
if (!out)
return (NULL);
i = 0;
j = 0;
while (s1[j])
out[i++] = s1[j++];
j = 0;
while (s2[j])
out[i++] = s2[j++];
ft_free(&s1);
return (out);
}
char *ft_strfjoinc(char *s1, char c)
{
char *out;
unsigned int i;
unsigned int j;
if (!s1)
{
out = ft_calloc(2, sizeof(char));
if (!out)
return (NULL);
out[0] = c;
return (out);
}
out = ft_calloc(ft_strlen(s1) + 2, sizeof(char));
if (!out)
return (NULL);
i = 0;
j = 0;
while (s1[j])
out[i++] = s1[j++];
out[i] = c;
ft_free(&s1);
return (out);
}
char *ft_strfjoind(char *s1, char *s2)
{
char *out;
unsigned int i;
unsigned int j;
if (!s1 && !s2)
return (NULL);
if (!s1)
return (ft_strdup(s2));
if (!s2)
return (ft_strdup(s1));
out = ft_calloc(ft_strlen(s1) + ft_strlen(s2) + 1, sizeof(char));
if (!out)
return (NULL);
i = 0;
j = 0;
while (s1[j])
out[i++] = s1[j++];
j = 0;
while (s2[j])
out[i++] = s2[j++];
ft_free(&s1);
ft_free(&s2);
return (out);
}