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ft_printf.c
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ft_printf.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: riolivei <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/11/15 14:57:03 by riolivei #+# #+# */
/* Updated: 2022/11/18 14:24:42 by riolivei ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int num_digits(int n)
{
int counter;
counter = 0;
if (n <= 0)
counter++;
while (n != 0)
{
n = n / 10;
counter++;
}
return (counter);
}
int full_string(char *str)
{
int i;
int count;
if (!str)
{
count = full_string("(null)");
return (count);
}
i = -1;
count = 0;
while (str[++i])
count += character(str[i]);
return (count);
}
int character(int c)
{
write(1, &c, 1);
return (1);
}
int conversion(int c, va_list args)
{
int count;
count = 0;
if (c == 'c')
count = character(va_arg(args, int));
else if (c == 's')
count = full_string(va_arg(args, char *));
else if (c == 'p')
count = voidptr(va_arg(args, unsigned long long));
else if (c == 'd' || c == 'i')
count = ft_itoa(va_arg(args, int));
else if (c == 'u')
count = ft_uitoa(va_arg(args, unsigned int));
else if (c == 'x')
count = hexa(va_arg(args, unsigned int), 'l');
else if (c == 'X')
count = hexa(va_arg(args, unsigned int), 'u');
else if (c == '%')
count = character('%');
return (count);
}
int ft_printf(const char *str, ...)
{
int i;
int count;
va_list args;
count = 0;
i = -1;
if (!str)
return (0);
va_start(args, str);
while (str[++i])
{
if (str[i] == '%')
{
count += conversion(str[i + 1], args);
i++;
}
else
count += character(str[i]);
}
va_end(args);
return (count);
}