printf/print_pointer.c at main · kishea-dev/printf · GitHub

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#include "main.h"
/****************** PRINT POINTER ******************/
/**
 * print_pointer - Prints the value of a pointer variable
 * @types: List a of arguments
 * @buffer: Buffer array to handle print
 * @flags:  Calculates active flags
 * @width: get width
 * @precision: Precision specification
 * @size: Size specifier
 * Return: Number of chars printed.
 */
int print_pointer(va_list types, char buffer[],
	int flags, int width, int precision, int size)
{
	char extra_c = 0, padd = ' ';
	int ind = BUFF_SIZE - 2, length = 2, padd_start = 1; /* length=2, for '0x' */
	unsigned long num_addrs;
	char map_to[] = "0123456789abcdef";
	void *addrs = va_arg(types, void *);

	UNUSED(width);
	UNUSED(size);

	if (addrs == NULL)
		return (write(1, "(nil)", 5));

	buffer[BUFF_SIZE - 1] = '\0';
	UNUSED(precision);

	num_addrs = (unsigned long)addrs;

	while (num_addrs > 0)
	{
		buffer[ind--] = map_to[num_addrs % 16];
		num_addrs /= 16;
		length++;
	}

	if ((flags & F_ZERO) && !(flags & F_MINUS))
		padd = '0';
	if (flags & F_PLUS)
		extra_c = '+', length++;
	else if (flags & F_SPACE)
		extra_c = ' ', length++;

	ind++;

	/*return (write(1, &buffer[i], BUFF_SIZE - i - 1));*/
	return (write_pointer(buffer, ind, length,
		width, flags, padd, extra_c, padd_start));
}