Development repo for 42cursus' ft_printf project
For further information about 42cursus and its projects, please refer to 42cursus repo.

This project is pretty straight forward. You will recode printf. Hopefully you will be able to reuse it in future project without the fear of being flagged as a cheater. You will mainly learn how to use variadic arguments.

🚀 TLDR: this project consists of coding a library that contains a simplified version (more
information below) of the printf function.

• format specifiers - cspdiuxX%

The library is written in C language and thus needs the gcc compiler and some standard C libraries to run.

1. Compiling the library

To compile the library, run:

$ cd path/to/ft_printf && make

2. Using it in your code

To use the library functions in your code, simply include its header:

#include "ft_printf.h"

and, when compiling your code, add the required flags:

-lftprintf -L path/to/libftprintf.a -I path/to/ft_printf.h

• printfTester
• gavinfielder/pft
• Mazoise/42TESTERS-PRINTF
• HappyTramp/ft_printf_test
• t0mm4rx/ftprintfdestructor
• charMstr/printf_lover_v2

• C++ Reference - printf
• Article: Secrets of “printf” (PDF)
• MacOS documentation - printf
• IEEE-754 Floating Point Converter
• How does one print floats for ft_printf? - Stack Overflow - 42 Network
• Printing Floating-Point Numbers
• Printing Floating-Point Numbers Quickly and Accurately with Integers
• What precisely does the %g printf specifier mean? - Stack Overflow

1. What is Variadic Functions?
   • Variadic function takes indefinite size arity and a variable number of arguments as a parameter. Situations that you do not know how many parameters pass the function.
2. what is ellipses (...)?
   • The ellipsis (...) is part of the C language and indicates that there are 0 or more optional arguments.

3. What is va_list?

4. What is va_start?
   • gets the address of the first argument.
5. What is va_arg?
   • dereference the block address and type cast it to the appropriate type. then goes to the next block of memory.
   • What is a "Type Descriptor"?

6. What is va_end?

7. Calling convensions!
   • https://www.youtube.com/watch?v=JHGTXM3oIs0
   • https://en.wikipedia.org/wiki/X86_calling_conventions
   • https://www.youtube.com/watch?v=F3XiH78erNM&t=1615s

• man stdarg