PRINTF PROYECT IN C👩‍💻

¿What is printf? Printf is the function we use to make a formatted printout. Printf= the f stands for input by formatted output

Requirements📌

  • Allowed editors: vi, vim, emacs
  • All your files will be compiled on Ubuntu 20.04 LTS using gcc, using the options -Wall -Werror -Wextra -pedantic -std=gnu89
  • All your files should end with a new line
  • A README.md file, at the root of the folder of the project is mandatory
  • Your code should use the Betty style. It will be checked using betty-style.pl and betty-doc.pl
  • You are not allowed to use global variables
  • No more than 5 functions per file
  • In the following examples, the main.c files are shown as examples. You can use them to test your functions, but you don’t have to push them to your repo (if you do we won’t take them into account). We will use our own main.c files at compilation. Our main.c files might be different from the one shown in the examples
  • The prototypes of all your functions should be included in your header file called main.h
  • Don’t forget to push your header file
  • All your header files should be include guarded
  • Note that we will not provide the _putchar function for this project

Resources📚

Secrets of printf

Man or help

  • 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)

Compilation💻

  • Your code will be compiled this way: $ gcc -Wall -Werror -Wextra -pedantic -std=gnu89 -Wno-format *.c

Format Specifiers!

The flags in the format string must have the following structure (fields in square brackets are optional):

%[parameter][flags][width][.precision][length]type
function name Description
%d %i Signed decimal conversion of an integer
%c Prints the corresponding ASCII character
%s Character string (ending with '\0')
%o Unsigned octal conversion of an integer
%u Unsigned decimal conversion of an integer
%x %X Unsigned hexadecimal conversion
%% Prints the symbol %

Flow chart📊

Diagram

AUTHORS🖊

Nathaly Ortiz Github Nataly

Charline Mosquera Github Charline

Yurany Ulchur Github Yurany