printf()

The printf() function, which is short for “print formatted,” is a fundamental function in C , It is part of the standard input/output library (stdio.h) it is primarily used for outputting formatted text on the console . With printf, you can display various data types such as :

integers, floating-point numbers, characters, and strings

and can allow formatting in numerous ways.

Resource :

https://www.academia.edu/10297206/Secrets_of_printf_

Parameters

• formatted_string: It is a string that specifies the data to be printed. It may also contain a format specifier to print the value of any variable such as a character and an integer.
• arguments_list: These are the variable names corresponding to the format specifier

Supported Format Specifiers

Format specifiers begin with '%' and can include optional flags, length modifiers, and conversion characters.

Available Specifiers

Specifier	Description
c	Character
d or i	Signed decimal integer
s	String of characters
b	Binary representation
o	Octal representation
u	Unsigned decimal integer
x	Unsigned hexadecimal integer (lowercase)
X	Unsigned hexadecimal integer (uppercase)
p	Pointer address
r	Reverse string
R	ROT13 encrypted string
S	String with special characters replaced by ASCII values
%	Literal '%' character

Flags and Length Modifiers

Flags (+, (space), #, 0) and length modifiers (l, h) modify the behavior of specifiers.

Usage

• Compile using : $ gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c

• Simply include the main.h header file in your own program and call the custom printf function with the desired format string and any necessary arguments.

Example usage:

_printf("Hello %s\n", "World");

This will output:

Hello World

Authors

• Anoona Sithole
• Shumirai Sithole