printf_char.c

#include "main.h"
#include <stdlib.h>
#include <unistd.h>
#include "main.h"

/**
 * _putchar - writes the character c to stdout
 * @c: The character to print
 *
 * Return: On success 1 since only one char is needed to be written.
 * On error, -1 is returned, and errno is set appropriately.
 */
int _putchar(char c)
{
	return (write(1, &c, 1));
}

/**
 * _writeline - write a string to the stdout followed by newline
 * @str: string to write
 *
 * Return: number of bytes written or -1 on error
 * On error, -1 is returned, and errno is set appropriately.
 */
int _writeline(char *str)
{

	ssize_t bytes_written;

	bytes_written = _writestring(str);
	if (bytes_written > 0)
	{
		if (_putchar('\n') != 1)
			return (-1);
		return (bytes_written + 1);
	}
	return (-1);
}

/**
 * _writestring - write a string to the stdout followed by newline
 * @str: string to write
 *
 * Return: number of bytes written or -1 on error
 * On error, -1 is returned, and errno is set appropriately.
 */
int _writestring(char *str)
{

	ssize_t bytes_written;

	if (str == NULL)
		return (-1);
	bytes_written = write(STDOUT_FILENO, str, _strlen(str));
	return (bytes_written > 0 ? bytes_written : -1);
}

/**
 * _str_rev - write a string to the stdout followed by newline
 * @str: pointer to string
 *
 * Return: pointer to reversed string
 */
char *_str_rev(char *str)
{

	unsigned int len = _strlen(str);
	char t, *p1, *p2;

	if (str == NULL) /* bad inputs include: NULL, "" */
		return (NULL);
	p1 = str;	    /* pointer to the first char in str */
	p2 = str + len - 1; /* pointer to last char */
	while (p2 > p1)
	{
		t = *p2;
		*p2-- = *p1;
		*p1++ = t;
	}
	return (str);
}

/**
 * _putstring - write a string to the stdout followed by newline
 * @str: string to write
 *
 * Return: number of bytes written or -1 on error
 * On error, -1 is returned, and errno is set appropriately.
 */
int _putstring(char *str)
{
	if (str == NULL)
		return (write(1, "(null)", 7));
	return (_writestring(str));
}