在 GNU c++ 编译器中运行一个包含多个源文件的程序 [英] run a program with more than one source files in GNU c++ compiler

问题描述

我在 Windows 7 操作系统上使用 DEV GNU c++ 编译器.我需要知道如何编译具有多个源文件的程序.这是示例，

I am using DEV GNU c++ compiler on windows 7 OS. I need to know how a program with more than one source file can be compiled. here is example,

#FILE1
void f1()
{
   printf("this is another file under same program");
}

#FILE2

int main()
{
   f1();
   return 0;
}

实际上我需要这个来测试静态、extern 类说明符如何处理多个文件.所以只有我现在必须学习如何在 C 中的单个程序中处理多个文件..

Actually I need this to test how static, extern class specifier works with more than one file. So only I have to learn now how works with more than one files in a single program in C..

提前致谢

推荐答案

多个文件"的技术术语将是 翻译单位:

The technical term for 'multiple files' would be translation units:

g++ file1.cpp file2.cpp -o program

或者你把编译和链接分开

Or you separate compilation and linking

g++ -c file1.cpp -o file1.o
g++ -c file2.cpp -o file2.o

# linking
g++ file1.o file2.o -o program   

但这通常没有意义，除非您有一个更大的项目(例如使用 make)并希望减少构建时间.

But that usually doesn't make sense unless you have a larger project (e.g. with make) and want to reduce build times.

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