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Introduction to programming with 'C'.

Table of Content

Description

Concepts

For this project, we expect you to look at these concepts:

Resources

Read or watch:

man or help:

  • gcc
  • printf (3)
  • puts
  • putchar

Learning Objectives

At the end of this project, you are expected to be able to explain to anyone, without the help of Google:

General

  • Why C programming is awesome
  • Who invented C
  • Who are Dennis Ritchie, Brian Kernighan and Linus Torvalds
  • What happens when you type gcc main.c
  • What is an entry point
  • What is main
  • How to print text using printf, puts and putchar
  • How to get the size of a specific type using the unary operator sizeof
  • How to compile using gcc
  • What is the default program name when compiling with gcc
  • What is the official C coding style and how to check your code with betty-style
  • How to find the right header to include in your source code when using a standard library function
  • How does the main function influence the return value of the program

Requirements

C

  • 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 repo, containing a description of the repository
  • A README.md file, at the root of the folder of this project, containing a description of the project
  • There should be no errors and no warnings during compilation
  • You are not allowed to use system
  • Your code should use the Betty style. It will be checked using betty-style.pl and betty-doc.pl

Shell Scripts

  • Allowed editors: vi, vim, emacs
  • All your scripts will be tested on Ubuntu 20.04 LTS
  • All your scripts should be exactly two lines long ($ wc -l file should print 2)
  • All your files should end with a new line
  • The first line of all your files should be exactly #!/bin/bash

More Info

Betty linter

Installing betty linter for .c files

mkdir Betty && cd Betty
git clone https://github.com/holbertonschool/Betty.git
cd Betty
sudo ./install.sh

Put this inside betty file

Or

echo '#!/bin/bash

# Simply a wrapper script to keep you from having to use betty-style
# and betty-doc separately on every item.
# Originally by Tim Britton (@wintermanc3r), multiargument added by
# Larry Madeo (@hillmonkey)

BIN_PATH="/usr/local/bin"
BETTY_STYLE="betty-style"
BETTY_DOC="betty-doc"

if [ "$#" = "0" ]; then
    echo "No arguments passed."
    exit 1
fi

for argument in "$@" ; do
    echo -e "\n========== $argument =========="
    ${BIN_PATH}/${BETTY_STYLE} "$argument"
    ${BIN_PATH}/${BETTY_DOC} "$argument"
done' > betty
chmod u+x betty
sudo mv betty /bin/

To check style:

betty filename.c

Author

Tafara Nyamhunga - Github / Twitter