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ft_printf.c
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ft_printf.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jkoupy <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/09/19 14:44:22 by jkoupy #+# #+# */
/* Updated: 2023/09/24 18:46:49 by jkoupy ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int print_simple_va(va_list args, char spec)
{
int printlen;
printlen = 0;
if (spec == 'c')
printlen += ft_putchar_fd(va_arg(args, int), 1);
else if (spec == 'i' || spec == 'd')
printlen += ft_putnbr_fd(va_arg(args, int), 1);
else if (spec == 's')
printlen += ft_putstr_fd(va_arg(args, char *), 1);
else if (spec == 'p')
printlen += ft_putptr_fd(va_arg(args, unsigned long long), 1);
else if (spec == 'u')
printlen += ft_putnbr_fd(va_arg(args, unsigned int), 1);
else if (spec == 'x' || spec == 'X')
printlen += ft_puthexa(va_arg(args, int), spec);
else if (spec == '%')
printlen += ft_putchar_fd('%', 1);
return (printlen);
}
int read_va(const char *format, int *i, va_list args)
{
int printlen;
printlen = 0;
if (is_correct_flag(format, i))
printlen += print_flag_va(format, i, args);
else if (is_skip_flag(format, i))
{
printlen += print_simple_va(args, format[*i + 2]);
(*i)++;
}
else
printlen += print_simple_va(args, format[*i + 1]);
if (isspec(format[*i + 1]))
(*i)++;
return (printlen);
}
int ft_printf(const char *format, ...)
{
int i;
va_list vars;
int printlen;
i = 0;
printlen = 0;
if (!format || format[0] == '\0')
return (-1);
va_start(vars, format);
while (format[i])
{
if (format[i] == '%')
printlen += read_va(format, &i, vars);
else
printlen += write(1, &format[i], 1);
i++;
}
va_end(vars);
return (printlen);
}
/* #include <stdio.h>
int main(void)
{
char c = 'C';
char *str = "string";
void *ptr = &str;
int d = -123456;
int i = +123456;
unsigned int u = 123456;
int x = 0xfa12;
int X = 0xfa12;
int res;
res = 0;
printf("----------------------------------------------\n");
printf("Basic Tests:\n");
printf("ft_printf:\n");
res = ft_printf("\t%c, %s, %p, %d, %i, %u, %x, %X, %%\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("printf:\n");
res = printf("\t%c, %s, %p, %d, %i, %u, %x, %X, %%\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("----------------------------------------------\n");
c = NULL;
str = NULL;
ptr = NULL;
d = NULL;
i = NULL;
u = NULL;
x = NULL;
X = NULL;
printf("NULL Tests:\n");
printf("ft_printf:\n");
res = ft_printf("\t%c, %s, %p, %d, %i, %u, %x, %X, %%\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("printf:\n");
res = printf("\t%c, %s, %p, %d, %i, %u, %x, %X, %%\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("----------------------------------------------\n");
c = NULL;
str = NULL;
ptr = NULL;
d = NULL;
i = NULL;
u = NULL;
x = NULL;
X = NULL;
printf("Space (' ') Tests:\n");
printf("ft_printf:\n");
res = ft_printf("\t% c, % s, % p, % d, % i, % u, % x, % X, % %\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("printf:\n");
res = printf("\t% c, % s, % p, % d, % i, % u, % x, % X, % %\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("----------------------------------------------\n");
c = NULL;
str = NULL;
ptr = NULL;
d = NULL;
i = NULL;
u = NULL;
x = NULL;
X = NULL;
printf("Plus (+) Tests:\n");
printf("ft_printf:\n");
res = ft_printf("\t%+c, %+s, %+p, %+d, %+i, %+u, %+x, %+X, %+%\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("printf:\n");
res = printf("\t%+c, %+s, %+p, %+d, %+i, %+u, %+x, %+X, %+%\n",
c, str, ptr, d, i, u, x, X);
printf("\tReturn value: %d\n", res);
printf("----------------------------------------------\n");
c = NULL;
str = NULL;
ptr = NULL;
d = NULL;
i = NULL;
u = NULL;
x = 1;
X = 1;
printf("Sharp (#) Tests:\n");
printf("ft_printf:\n");
res = ft_printf("\t%#c, %#s, %#p, %#d, %#i, %#u, %#x, %#X, %#%\n",
c, str, ptr, d, i, u, x, X);
printf ("\tReturn value: %d\n", res);
printf("printf:\n");
res = printf("\t%#c, %#s, %#p, %#d, %#i, %#u, %#x, %#X, %#%\n",
c, str, ptr, d, i, u, x, X);
printf ("\tReturn value: %d\n", res);
printf("----------------------------------------------\n");
printf("Custom Test:\n");
printf("ft_printf:\n");
res = ft_printf("\t%c%s%d%i%u%x%X%% %c%s%d%i%u%x%X%% %c%s%d%i%u%x%X%% %c\n",
'A', "42", 42, 42, 42, 42, 42, 'B', "-42", -42, -42, -42,
-42, 42, 'C', "0", 0, 0, 0, 0, 42, 0);
printf ("\tReturn value: %d\n", res);
printf("printf:\n");
res = printf("\t%c%s%d%i%u%x%X%% %c%s%d%i%u%x%X%% %c%s%d%i%u%x%X%% %c\n",
'A', "42", 42, 42, 42, 42, 42, 'B', "-42", -42, -42, -42,
-42, 42, 'C', "0", 0, 0, 0, 0, 42, 0);
printf ("\tReturn value: %d\n", res);
printf("----------------------------------------------\n");
return (0);
}
*/