ft_printf library
----------------

Description
----------

This is a custom implementation of printf() glibc.

I wrote this implementation to carry on learning C and understand what printf
does, to an extend.

This implementation is concerned with the following specifiers only: c, s,
i, d, u, x, X, p.

Instructions
-----------

To clone the repository of this library run:

	$ git clone https://git.yctct.com/ft_printf
	$ cd ft_printf

To compile the library run:

	$ make

To recompile the library run:

	$ make re

To delete all object files run:

	$ make clean

To delete all object files and libft.a run:

	$ make fclean

Then to use the library, libftprintf.a, with a programme, say main.c, run:

	$ cc main.c libftprintf.a

and prepend each of the C files with:

	#include "path/to/ft_printf.h"

Implementation choice
---------------------

ft_printf.c parses the string for the specifier.  When it finds a specifier, a
helper function check the character following the specifier against conversion
specifier, when the condition is true (i.e. the char following the specifier is
a conversion specifier, then the argument pointer is passed to a function that
will convert the argument according to the conversion specifier.

Possible improvements:

- I could probably merge both functions converting decimal to hexadecimal into
  a single function.
- At the end of my implement, I added a function, ft_checkpadd.c to check
  whether the address a pointer is pointing to is zero. I could try to
integrate that function elsewhere.
- deal with edge case when % is the last char of a string


Some edge cases this implementation takes into account:

- specifier followed by a non-conversation specifier character e.g. %t
- print(0);
- print ("");

Relevant projects
-----------------

- [add URL to printf test]

Resources
---------

- Oceano's tutorials on variadic functions and "mini printf"
- man stdarg for variadic functions.
- man limits.h for INT_MAX, etc.
- man 3 printf