printf/write_pointer.c at master · m7robot/printf · GitHub

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#include "main.h"

/**
 * write_pointer - Write a memory address
 * @buffer: Arrays of chars
 * @ind: Index at which the number starts in the buffer
 * @length: Length of number
 * @width: Width specifier
 * @flags: Flags specifier
 * @padd: Char representing the padding
 * @extra_c: Char representing extra char
 * @padd_start: Index at which padding should start
 *
 * Return: Number of written chars.
 */
int write_pointer(char buffer[], int ind, int length,
	int width, int flags, char padd, char extra_c, int padd_start)
{
	int i;

	if (width > length)
	{
		for (i = 3; i < width - length + 3; i++)
			buffer[i] = padd;
		buffer[i] = '\0';
		if (flags & MINUS && padd == ' ')/* Asign extra char to left of buffer */
		{
			buffer[--ind] = 'x';
			buffer[--ind] = '0';
			if (extra_c)
				buffer[--ind] = extra_c;
			return (write(1, &buffer[ind], length) + write(1, &buffer[3], i - 3));
		}
		else if (!(flags & MINUS) && padd == ' ')/* extra char to left of buffer */
		{
			buffer[--ind] = 'x';
			buffer[--ind] = '0';
			if (extra_c)
				buffer[--ind] = extra_c;
			return (write(1, &buffer[3], i - 3) + write(1, &buffer[ind], length));
		}
		else if (!(flags & MINUS) && padd == '0')/* extra char to left of padd */
		{
			if (extra_c)
				buffer[--padd_start] = extra_c;
			buffer[1] = '0';
			buffer[2] = 'x';
			return (write(1, &buffer[padd_start], i - padd_start) +
				write(1, &buffer[ind], length - (1 - padd_start) - 2));
		}
	}
	buffer[--ind] = 'x';
	buffer[--ind] = '0';
	if (extra_c)
		buffer[--ind] = extra_c;
	return (write(1, &buffer[ind], BUFF_SIZE - ind - 1));
}