abderrsfa / ft_printf

Printf recoded. It manages width, precision, and the '0' '-' '*' flags.

🖨 ft_printf

🧐 Description

The aim of this project is pretty straight forward; recode printf. This project teaches the ins and outs of using variadic arguments. The key to a successful ft_printf is well-structured and extensible code.

🔧 Usage

Running make will produce a library called ft_printf.a. Use ft_printf() just as you would use printf(). When compiling your code use ft_printf.a.

gcc main.c ft_printf.a

⚙️ Functionality

Just like the real printf, ft_printf allows the following functionality:

%[flags][width][.precision]type

Flags:

These flags are supported:

• '0' (zero) - if the 'width' option is specified, add zeros to the beginning for numeric types.

• '-' (minus) - Left-align the output of this placeholder.

Width:

Specifies a minimum number of characters to output.

'*' : If '*' is used width is not specified in the format string, but as an additional integer value argument preceding the argument that has to be formatted.

Precision:

Precision field specifies a maximum limit on the output. E.g: ft_printf("%.2s", "xyz"); would output 'xy'.

Type:

These conversion characters are managed:

• %c (character)
• %s (string)
• %p (address)
• %d (digit)
• %i (integer)
• %u (unsigned integer)
• %x (hexadecimal in lowercase)
• %X (hexadecimal in upper case)