NdivhoNemz / printf

ALX printf project

/********** PRINTF *********/

Printf

This is an ALX 0x11. C - printf collaboration project

Written in

1. C language
2. Betty style

General Requirement

• All files will be compiled on Ubuntu 20.04 LTS using gcc, using the options -Wall -Werror -Wextra -pedantic -std=gnu89
• All files should end with a new line
• A README.md file, at the root of the folder of the project is mandatory
• Use the Betty style. It will be checked using betty-style.pl and betty-doc.pl
• Not allowed to use global variables
• No more than 5 functions per file
• In the following examples, the main.c files are shown as examples.Use them to test the functions, but don’t have to push them to the repo (if you do we won’t take them into account). We will use our own main.c files at compilation. Our main.c files might be different from the one shown in the examples.
• The prototypes of all the functions should be included in the header file called main.h
• Don’t forget to push the header file
• All your header files should be include guarded
• Note that we will not provide the _putchar function for this project

##Tested by main.c

##Compilation $ gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c`

##Acknowledgments ALX Community

Task

0. Write a function that produces output according to a format. Prototype: int _printf(const char *format, ...); Returns: the number of characters printed (excluding the null byte used to end output to strings) write output to stdout, the standard output stream format is a character string. The format string is composed of zero or more directives. See man 3 printf for more detail. You need to handle the following conversion specifiers: c s % You don’t have to reproduce the buffer handling of the C library printf function You don’t have to handle the flag characters You don’t have to handle field width You don’t have to handle precision You don’t have to handle the length modifiers

1. Handle the following conversion specifiers: "d" and "i".

2. Handle the following custom conversion specifiers: b: the unsigned int argument is converted to binary

3. Handle the following conversion specifiers: u,o,x,X

4. Use a local buffer of 1024 chars in order to call write as little as possible.

5. Handle the following custom conversion specifier:

   -- S : prints the string. -- Non printable characters (0 < ASCII value < 32 or >= 127) are printed this way: \x, followed by the ASCII code value in hexadecimal (upper case - always 2 characters)

6. Handle the following conversion specifier: p.

7. Handle the following flag characters for non-custom conversion specifiers: +,space,#

8. Handle the following length modifiers for non-custom conversion specifiers: l,h. Conversion specifiers to handle: d, i, u, o, x, X

9. Handle the precision for non-custom conversion specifiers.

10. Handle the 0 flag character for non-custom conversion specifiers.

11. Handle the - flag character for non-custom conversion specifiers.

12. Handle the following custom conversion specifier: r : prints the reversed string

13. Handle the following custom conversion specifier: R: prints the rot13'ed string

14. All the above options work well together.