_printf

This is our own function printf in C that is part of the Holberton framework and first big project for the cohort 11.

• Prototype: int _printf(const char *, ...);

Examples

String

```Input: _printf("%s\n", 'This is a string.');
Output: This is a string.```

Character

```Input: _printf("The first letter in the alphabet is %c\n", 'A');
Output: The first letter in the alphabet is A```

Integer

```Input: _printf("There are %i\n", 12);
Output: There are 12```

Decimal

```Input: _printf("%d\n", 1000);
Output: 1000```

Requirementes and authorized functions:

• All files will be compiled on Ubuntu 14.04 LTS
• Programs and functions will be compiled with gcc 4.8.4 using flags -Wall -Werror -Wextra and -pedantic
• Code must follow the Betty style
• Global variables are not allowed

1.  write (man 2 write)
   

2.  malloc (man 3 malloc)
   

3.  free (man 3 free)
   

4.  va_start (man 3 va_start)
   

5.  va_end (man 3 va_end)
   

6.  va_copy (man 3 va_copy)
   

7.  va_arg (man 3 va_arg)
   

Tasks Made it

• Write function that produces output with conversion specifiers c,s, and %.
• Conversion of specifiers i and d.
• Man page for the created function.
• Conversion of specifier b prints a decimal number coverted to binary.
• Conversion of specifier S prints a string but with a condition.
• Conversion of specifier r prints in reverse a string.
• Conversion of specifier R prints a string in rot13.
• Conversion of specifier u prints a unsigned int.
• Conversion of specifier o prints an octal number.
• Conversion of specifier X prints hexadecimal numbers in uppercase.
• Conversion of specifier X prints hexadecimal numbers in lowercase.

Files in the repo

• _printf.c: This contains the prototype and makes the different convertions that are in the other files.
• _putchar.c: This file contain the syscall write and print a character to the standar output.
• holberton.h: This file contain all the prototypes and the struct
• print_functions.c: This file has the functions that are mandatory like print strings, chars, integers and decimals.
• print_advance.c: This file has some of the functions that are advanced like print a string in reverse, or the specifier S and the prints rot13 string.

Authors

• Miguel Angel Cipamocha Figueredo
• Brian Steven Mosquera Gamboa