A formatted output conversion C program. It is a pseudo-recreation of the C standard library function printf

int _printf(const char *format, ...);

All files will be complied on Ubuntu 20.04LTS using gcc, using the options gcc -Wall -Werror -Wextra -pedantic -Wno-format -std=gnu89 *.c

After complilation, _printf() is ready for use.

    include "printf.h"

    int main(void)
    {
         _printf("This is an implementation of %s\n", "printf");
    }

Complilation:

    gcc -Wall -Werror -Wextra -pedantic -Wno-format -std=gnu89 *.c -o tester

Output:

    $ ./tester
    This is an implementation of printf
    $

The _printf() function produces output in accordance to a specified format. This function prints its output to the stdout and returns the length of the output when successful.

• %c: Character specifier
• %d: Decimal specifier
• %i: Integer specifier
• %s: String specifier (character pointer)
• %%: Print the percentage sign
• %o: Octal specifier
• %x: Hexadecimal specifier
• %X: Hexadecimal specifier (Uppercase)
• %p: Address specifier

• %b: Binary specifier
• %R: rot13'ed specifier
• %r: reversed specifier
• %S: String specifier. (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))

• David Bakare

This project was written as part of the curriculum for Holberton/ALX-SE program