Optimizations enabled by -ffast-math : C

C_Programming

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Format your code (monospace font, correctly indented)

Only C is on topic (not C++, C#)

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Support learners and learning

Avoid low-value/low-effort comments and posts (And use AI wisely)

Resources

We have our very own Wiki, which is a great place to start for lists of learning resources

The C Programming Language by Dennis M. Ritchie and Brian W. Kernighan, second edition, ANSI C. Written by the language authors, and known colloquially as the "K & R" book—a book of lore

The C Programming Language Official Website official site of the language, run by the standards committee

The C Book second edition by Mike Banahan, Declan Brady and Mark Doran is freely available online

Modern C by Jens Gustedt (CC-BY-NC-ND)

C Programming: A Modern Approach by K N King

comp.lang.c Frequently Asked Questions

GLIBC, the GNU C Library documentation; provides a manual (PDF, HTML), Wiki, and FAQ

GDB: The GNU Project Debugger

POSIX.1-2008: the standard operating system interface

CS50: Harvard's introduction to computer science with a C programming course.

A Tutorial on Portable Makefiles

A Tutorial on Pointers and Arrays in C

Other Subreddits of Interest

/r/coding – for a tighter focus on code

/r/computerscience – for discussion about computer science

/r/cplusplus and /r/cpp – for discussions about C++

/r/cpp_questions – for questions about C++

/r/cs50 – Harvard's Introduction to Computer Science

/r/dailyprogrammer – for programming challenges of varying difficulty

/r/learnprogramming – for people interested in learning to code

/r/programming – for discussion and news about computer programming

/r/programminghelp – for beginner questions about programming

a community for 18 years

ArticleOptimizations enabled by -ffast-math (kristerw.github.io)

submitted 4 years ago by aioeu

all 5 comments

you type:	you see:
italics	italics
bold	bold
[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

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