ft_printf.h File Reference

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_printf.h                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tgrekov <tgrekov@student.hive.fi>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/10/31 23:08:39 by tgrekov           #+#    #+#             */
/*   Updated: 2024/02/13 09:06:38 by tgrekov          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 

Definition in file ft_printf.h.

#include <stdarg.h>

Include dependency graph for ft_printf.h:

Go to the source code of this file.

Functions
int	ft_printf (const char *format,...)
	Prints and formats a variable set of arguments.

Function Documentation

ft_printf()

int ft_printf	(	const char *	format,
			...
	)

Prints and formats a variable set of arguments.

The format for a specifier is as follows:
%[flags][width][precision][length]specifier

Specifier	Function	Example
d or i	Signed decimal integer	-42
u	Unsigned decimal integer	42
o	Unsigned octal	52
x	Unsigned hexadecimal integer	2a
X	Unsigned uppercase hexadecimal integer	2A
c	Character	*
s	String of characters	Forty-two
p	Pointer address	0x2a
%	A % chracter	%
n	Nothing is printed. The corresponding argument must be a pointer to a signed integer, which will be set to the number of characters written so far.
>	Nothing is printed. The corresponding argument must be a signed integer representing the file descriptor to redirect any remaining output during this call to.

Flag	Specifiers	Description
-	All 1	Left-justify padding instead of right-justifying.
+	d i	Preceed numbers with a + sign if they are not negative.
(space)	d i	Preceed numbers with a space if no sign is to be written.
#	o x X	If non-zero, preceed values for o, x, or X specifiers with 0, 0x, or 0X respectively.
0	All 1	Pad with zeroes instead of spaces. Cannot be mixed with precision or left-justification.
_	All 1	Pad with custom string, the address of which is provided in the next function argument. Cannot be mixed with precision or left-justification if used on used with d, i, o, u, x, or X.

¹ With the exception of the n and > specfiers, as they do not print anything.

Width	Description
(number)	Minimum number of characters to print. Pads to reach this number.
*	The minimum width should be retrieved from the next function argument.

.precision	Description
.number	For d, i, o, u, x, or X, the minimum number of digits to write. If the value is shorter than this number, it is padded with leading zeros. For a precision of 0, nothing is written if the value is 0. For s, the maximum number of characters to be printed.
*	The precision should be retrieved from the next function argument.

	Specifiers
Length	d i	u o x X	c	s	p	n	>
(none)	int	unsigned int	int	char *	void *	int *	int
hh	char	unsigned char				signed char *
h	short	unsigned short				short *
l	long	unsigned long				long *
ll	long long	unsigned long long				long long *
j	intmax_t	uintmax_t				intmax_t *
z	size_t					size_t *
t	ptrdiff_t					ptrdiff_t *

Parameters

[in]	format	Null terminated string containing text to print and, optionally, conversion specifiers and subspecifiers. See extended description.
[in,out]	...	Variable amount of arguments of various types, dependent on the format.

Return values

int	Number of characters printed, or -1 if an error occurs.

Definition at line 252 of file ft_printf.c.