1.An Introduction to GCC
http://www.network-theory.co.uk/docs/gccintro/

2.Introduction to C Programming by Rob Miles, Electronic Engineering
http://www.tti.unipa.it/~ricrizzo/KS/Data/RMiles/c6.html
3.Writing Bug-Free C Code
A Programming Style That Automatically Detects Bugs in C Code
by Jerry Jongerius / January 199
http://www.duckware.com/bugfreec/index.html

4.The C Book
http://publications.gbdirect.co.uk/c_book/

5.C Elements of Style
http://www.oualline.com/books.free/free-books.html

6.Build Your Own Lisp
http://buildyourownlisp.com/

7.Beej’s Guide to C Programming
http://beej.us/guide/bgc/

8.The GNU C Reference Manual
https://www.gnu.org/software/gnu-c-manual/

以上轉自https://blog.csdn.net/magaiou/article/details/80311414 

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C/C++語法相關

http://en.cppreference.com/w/

C++相關

http://www.cplusplus.com/