ft_printf

ft_printf

Because ft_putnbr() and ft_putstr() aren't enough.

The goal of this project is pretty straightforward. You will recode printf().
You will mainly learn about using a variable number of arguments. How cool is that??
It is actually pretty cool :)

Mandatory part

Key	Value
Program name	libftprintf.a
Turn in files	Makefile, *.h, */*.h, *.c, */*.c
Makefile	NAME, all, clean, fclean, re
External functions	malloc, free, write, va_start, va_arg, va_copy, va_end
Libft authorized	Yes
Description	Write a library that contains ft_printf(), a function that will mimic the original printf().

You have to recode the printf() function from libc.

The prototype of ft_printf() is:

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

Requirements

• Don't implement the buffer management of the original printf().
• Your function has to handle the following conversions: c, s, p, d, i, u, x, X and %
• Your function will be compared against the original printf().
• You must use the command ar to create your library. Using the libtool command is forbidden.
• Your libftprintf.a has to be created at the root of your repository.

You have to implement the following conversions:

• %c Prints a single character.
• %s Prints a string (as defined by the common C convention).
• %p The void * pointer argument has to be printed in hexadecimal format.
• %d Prints a decimal (base 10) number.
• %i Prints an integer in base 10.
• %u Prints an unsigned decimal (base 10) number.
• %x Prints a number in hexadecimal (base 16) lowercase format.
• %X Prints a number in hexadecimal (base 16) uppercase format.
• %% Prints a percent sign.

Bonus part

If you plan to complete the bonus part, think about the implementation of your extra features from the start. This way, you will avoid the pitfalls of a naive approach.

• Manage any combination of the following flags: '-0.' and the field minimum width under all conversions.
• Manage all the following flags: '# +' (Yes, one of them is a space)

Type	- left align	0 zero pad	. precision	(number) min width	# alternative form	(space) left pad with one space	+ show signed numbers
%c	✔	✔	n/a	✔	n/a	n/a	n/a
%s	✔	✔	✔	✔	n/a	n/a	n/a
%p	✔	✔	n/a	✔	n/a	n/a	n/a
%d / %i	✔	✔	✔	✔	n/a	✔	✔
%u	✔	✔	✔	✔	n/a	✔	✔
%x	✔	✔	✔	✔	✔	n/a	n/a
%X	✔	✔	✔	✔	✔	n/a	n/a
%%	✔	✔	n/a	✔	n/a	n/a	n/a