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#linux #compiler #reference #path #gcc #c++

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博客介绍了Linux环境下的编辑器与编译器情况。提到XEmacs可集成编译器，修改用户主目录下的.profile文件后能用命令执行。还给出GCC编译C和C++程序的相关链接，展示了一段C代码及编译执行结果，同时提供了C++参考指南链接。

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XEmacs

Editors in the Linux environment are usually completely separated from compilers and compiler tools, such as make. Source code is written with a text editor and the source file is compiled afterwards.
There are also editors that integrate compilers so that the compiling can be carried out within the editor. One such editor is XEmacs. In order to use XEmacs conveniently, the .profile file in user's home directory should contain the following lines:

PATH="$PATH:/opt/xemacs/bin"
export PATH

After this modification XEmacs editor can be executed with a command xemacs. For additional information on XEmacs, please visit www.xemacs.org.

GCC

Compiling "C" And "C++" Programs On Unix Systems - gcc/g++
http://users.actcom.co.il/~choo/lupg/tutorials/c-on-unix/c-on-unix.html

GCC how to
http://doc.99net.net/doc/soft/1076980860/index.html

列一：fork.c

#include
#include
#include

void main(void)
{
pid_t pid;

printf("hello/n");
pid = fork();

switch (pid) {
case -1: printf("failure!/n"); break;
case 0: printf("I am child!/n"); break;
default: printf("my child is %d/n",pid); break;
}
for (; ; ) { /* do something here */ }
}

编译:

gcc -o ex1 fork.c

执行结果:

./ex1 &

hello
my child is 8650
I am child!

C++ Reference Guide
http://www.informit.com/guides/guide.asp?g=cplusplus&rl=1