printf functions

_printf

The _printf function is a custom implementation of the C programming function printf. It returns the number of characters printed and writes the output to stdout. It includes the conversion specifiers : c, s, %, d, x, X, u, o, rot13 and i.

Example

#include "holberton.h"
_printf("The %s jumped %d times! -%c", "dog", 7, 'C');

output : The dog jumped 7 times! -C

Project Requirements

• All files will be compiled on Ubuntu 14.04 LTS
• Your programs and functions will be compiled with gcc 4.8.4 using the flags -Wall -Werror -Wextra and -pedantic
• Your code should use the Betty style
• You are not allowed to use global variables
• Authorized functions and macros:
• write (man 2 write)
• malloc (man 3 malloc)
• free (man 3 free)
• va_start (man 3 va_start)
• va_end (man 3 va_end)
• va_copy (man 3 va_copy)
• va_arg (man 3 va_arg)

Files and functions

• _putchar.c:

  • int _putchar(char c) - function to print char

• _strlen.c:

  • int _strlen(char *string) - gets string length

• get_bin.c:

  • int _bin(va_list bin) - function to print binary

• get_char.c:

  • int ch(va_list character) - function to return char

• get_hex.c:

  • int _hex_str(unsigned int n, unsigned int hex, char alpha) - converts the number from base 10 to hex

• get_int.c:

  • int _int(va_list integ) - function to print integers

• get_oct.c:

  • int _oct(va_list octo) - function to print octal

• get_rot13.c:

  • int _rot13(va_list rot) - prints rot13 version

• get_str.c:

  • int str(va_list *s) - prints string to stdout

• get_unsigned.c:

  • int _ui(va_list unsign) - unsigned int print to stdout

• holberton.h: header file

• man_3_printf: _printf man page

• printf.c: main custom _printf function

  • int print_op(const char *format, fmt_t *print_arr, va_list list) - function to check which specifier to print
  • int _printf(const char *format, ...) - prints output according to format

Notes

Our program does not handle buffer handling, flag characters, field width, precision, or length modifiers.

Authors

Mitali Sengupta & Omar Contreras