comp.lang.c Frequently Asked Questions

This collection of hypertext pages is Copyright 1995-2005 by Steve Summit.

Content from the book "C Programming FAQs: Frequently Asked Questions"

(Addison-Wesley, 1995, ISBN 0-201-84519-9) is made available here by

permission of the author and the publisher as a service to the community.

It is intended to complement the use of the published text

and is protected by international copyright laws.

The on-line content may be accessed freely for personal use

but may not be published or retransmitted without explicit permission.

This page is the top of an HTML version of the Usenet

comp.lang.c Frequently Asked Questions list

(also known as the "clc FAQ").

An FAQ list is a collection of questions commonly asked on Usenet,

together with presumably definitive answers,

provided in an attempt to keep repeated questions

on the newsgroup

down to a low background drone

so that discussion can move on to more interesting matters.

Since they distill knowledge gleaned from many sources

and answer questions which are demonstrably Frequent,

FAQ lists serve as useful references

outside of their originating Usenet newsgroups.

This list is, I dare to claim, no exception,

and the HTML version youre looking at now,

as well as other versions referenced

just below

are intended to be useful to C programmers everywhere.

Several

other versions

of this FAQ list are available,

including a

book-length version

published by

Addison-Wesley.

(The book, though longer,

also has a few more errors;

Ive prepared an

errata list.)

See also question 20.40.

These pages are synchronized with

the posted Usenet version

and the Addison-Wesley book version.

Since not all questions appear in all versions,

the question numbers are not always contiguous.

[Note to web authors, catalogers, and bookmarkers:

the URL is

the right way to link to these pages.

All other URLs implementing this collection

are subject to change.]

You can browse these pages in several ways.

The table of contents below is of the lists major

sections; these links lead to sub-lists of the questions for

those sections.

The ``all questions link leads to a list of

all the questions; each question is (obviously) linked to its answer.

The ``section at a time link

arranges that

all the questions in each major section are

downloaded to your browser on

one ``page,

rather than having

each question/answer pair appear on its own page.

In either case,

the ``read sequentially link leads to the first

question; you can then follow the ``next link at

the bottom of each questions page to read through all of the

questions and answers sequentially.

Steve Summit

scs@eskimo.com

section at a time

1. Declarations and Initializations

2. Structures, Unions, and Enumerations

3. Expressions

4. Pointers

5. Null Pointers

6. Arrays and Pointers

7. Memory Allocation

8. Characters and Strings

9. Boolean Expressions and Variables

10. C Preprocessor

11. ANSI/ISO Standard C

12. Stdio

13. Library Functions

14. Floating Point

15. Variable-Length Argument Lists

16. Strange Problems

17. Style

18. Tools and Resources

19. System Dependencies

20. Miscellaneous

Glossary

Bibliography

Acknowledgements

All Questions

Read Sequentially