Printf

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Summary

This is a simple implementation of printf function that formats and prints data

Representation

The _printf() function produces output according to a format which is described below. This function write its output to the the standard output stream, stdout. It returns the count of printed characters when the function is successful and 1 when the function fails.

The available conversion specifiers are:

• %c: Prints a single character.

• %d: Prints integers.

• %b: Prints the binary representation of an unsigned decimal.

• %x: Prints the hexadecial representation of an unsigned decimal in lowercase letters

• %X:Prints the hexadecial representation of an unsigned decimal in uppercase letters

• %R: Prints the Rot13 interpretation of a string

• %s: Prints a string of characters.

Usage

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• All the files are to be compiled on Ubuntu 14.04 LTS

• Include the "main.h" header file on the functions using the _printf()

• Compile your code with $ gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c

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Example

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#include "main.h"
#include <stdio.h>
/**
* main - Entry point
*
* Return: Always 0
*/

int main(void)
{
  int a;
  int b;
  char *str;

  str = "school";
  a = _printf("%r\n", "Alx"); /*expected: xlA*/
  printf("--->%d\n", a); /*expected: 10*/

  b = _printf("%r\n", str); /*expected: loohcs*/
  printf("%d\n", b); /*expected: 7*/

  b = _printf("%r\n", str); /*expected: loohcs*/
  printf("%d\n", b); /*expected: 7*/
  return (0);
}

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File Functions

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_printf.c

Custom Printf Function That Performs Formatted Output Conversion And Print Data.

main.h

Header File Were All Prototypes Are Saved.

get_print_func.c

Pointer To A Function That Selects The Correct Function To Perform The Operation.

print_buf.c

Function That Prints The Buffer.

handl_buf.c

Function That Concatenates The Buffer Characters.

print_chr.c

Function That Writes The Character C To Stdout.

/* Identifier : %c */

print_str.c

Function That Writes The String To Stdout.

/* Identifier : %s */

print_int.c

Function That Prints An Integer.

/* Identifier : %i or %d */

print_bnr.c

Function That Prints Decimal In Binary.

/* Identifier : %b */

print_oct.c

Function That Prints Decimal In Octal.

/* Identifier : %o */

print_hex.c

Function That Prints Decimal In Hexadecimal.

/* Identifier : %x */

print_upx.c

Function That Prints Decimal In Uppercase Hexadecimal.

/* Identifier : %X */

print_usr.c

Function That Prints A String And Values Of Non-Printed Chars.

/* Identifier : %S */

print_unt.c

Function That Prints An Unsigned Integer.

/* Identifier : %u */

print_rev.c

Function That Writes The String To Stdout In Reverse.

/* Identifier : %r */

print_rot.c

Function That Writes The String To Stdout In Rot13.

/* Identifier : %R */

print_add.c

Function That Prints The Address Of An Input Variable.

/* Identifier : %p */

print_long_oct.c

Function That Prints Long Decimal Number In Octal.

/* Identifier : %lo */

print_long_hex.c

Function That Prints Long Decimal Number In Hexadecimal.

/* Identifier : %lx */

print_long_int.c

Function That Prints A Long Integer.

/* Identifier : %li */

print_long_upx.c

Function That Prints A Long Decimal In Uppercase Hexadecimal.

/* Identifier : %lX */

print_long_unt.c

Function That Prints A Long Unsigned Integer.

/* Identifier : %lu */

print_short_oct.c

Function That Prints Short Decimal Number In Octal.

/* Identifier : %ho */

print_short_hex.c

Function That Prints Short Decimal Number In Hexadecimal.

/* Identifier : %hx */

print_short_int.c

Function That Prints A Short Integer.

print_short_upx.c

Function That Prints A Short Decimal In Uppercase Hexadecimal.

/* Identifier : %hX */

print_short_unt.c

Function That Prints A Short Unsigned Integer.

/* Identifier : %hu */

print_num_hex.c

Function That Print A Number In Hexadecimal Begining With 0 And x.

/* Identifier : %#x */

print_num_oct.c

Function That Prints A Number In Octal Begining With 0 And o.

/* Identifier : %#o */

print_num_upx.c

Function That Prints A Number In Uppercase Hexadecimal.

/* Identifier : %#X */

print_plus_int.c

Function That Prints An Integer With Plus Symbol.

/* Identifier : %+i */

print_space_int.c

Function That Prints An Integer Begining With 0 And u.

/* Identifier : % i */

ev_print_func.c

Function That Returns The Amount Of Identifiers.

Authors

Ebunoluwa Obaje
Pelumi Olawole

Endprintf