C ++：流类保存文件到哪里？ [英] C++: Where does the ofstream class save the files to?

问题描述

我从Windows移动到Mac，现在我遇到文件输入/输出类的问题： ifstream &

  ofstream out（output.txt）; 
 out<< 测试; 
 out.close（）; 
  

将在相同的中创建一个新文件output.txt目录。

但是在MAC OS X中，此文件是在我的主目录中创建的：/Users/USER_NAME/output.txt

如何将该文件与可执行文件一起放在同一目录中？

PS我使用GCC和CodeBlocks。没有项目 - 我只是编译一个源文件。

解决方案

流类，像所有其他文件打开功能，当您提供相对路径时，请使用当前目录。您可以使用 chdir 这样的功能来控制当前目录，但更好的解决方案是使用完全限定的文件名。然后，您删除程序对当前目录的依赖。

I moved from Windows to Mac and now I'm experiencing a problem with the file input/output classes: ifstream & ofstream.

In Windows when you run with g++/Code Blocks

ofstream out("output.txt");
out << "TEST";
out.close();

A new file "output.txt" will be created in the same directory.

However in MAC OS X, this file is created in my home directory: /Users/USER_NAME/output.txt

How can I have this file in the same directory together with the executable?

P.S. I'm using GCC and CodeBlocks. There are no projects - I'm just compiling a single source file.

解决方案

The stream classes, like all other file-opening functions, use the current directory when you provide a relative path. You can control the current directory with a function like chdir, but a better solution is to use fully qualified file names. Then you remove your program's dependency on the current directory.

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