[C++] 源文件编译过程
1. 编译源文件成机器语言
Compile the source code.This means running a program that translates the source code to the internal language, called
“machine **language**”, used by the host computer. The file containing the translated program is the object code for your program.
The compiler generates an object code file with an o extension.
2. 链接机器语言代码和使用的其他库的代码。
Link the object code with additional code.
For example, C++ programs normally use libraries. A C++ library contains object code for a collection of computer routines, called functions, to perform tasks such as displaying information onscreen or calculating the square root of a number.
Linking combines your object code with object code for the functions you use and with some standard startup code to produce a
runtime version of your program.The file containing this final product is called the executable code.
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