C Programming

By Guy Lecky-Thompson

Lesson 8: Common Standard Libraries

Introduction

We have met several libraries to date, now it is time to run through the most commonly supplied, and used libraries that provide access to certain useful functions. Since the C language does not in itself have any ‘real’ input and output, screen handling, file handling, even time, date or string handling, it was necessary to provide these in a system-independent way.

Thus, the header files indicate the C interface to the functions. Their exact implementation will vary from operating system to operating system. What is important is that the effect is always the same.

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Lessons

Introduction
Lesson 1: Introduction to Programming
Lesson 2: Introduction to C
Lesson 3: Decision Making in C
Lesson 4: Repetition in C
Lesson 5: I/O & Data Types
Lesson 6: User Defined Data
Lesson 7: Functions
Lesson 8: Common Standard Libraries
• Introduction
• String Handling
• Advanced Math
• System Functions
• Summary