An introduction to writing C

Lesson 1 · On the house

Hello, printf, and main

The smallest C program that talks back.

Lesson 2

Variables and types

int, double, and declarations.

Lesson 3

Operators and expressions

Arithmetic and assignment.

Lesson 4

If and else

Branches with braces.

Lesson 5

While and for

Loops.

Lesson 6

Arrays

Fixed contiguous storage.

Lesson 7

Strings as char arrays

Null-terminated C strings.

Lesson 8

Functions

Declarations and definitions.

Lesson 9

Pointers intro

Addresses with * and &.

Lesson 10

A small C program

Compose types, loop, and a function.