IntelliJ - CLion : What should I do to use input text file?

Question

I want to read .txt file in my C/C++ project in CLion IDE.

I want to automate the command that I run in bash:

./<executable_file> < input.txt

I edited program parameter in Run/Debug configuration.

But it does not works.

Answer 1

If someone is still interested in this, at the current date, CLion has added this feature. Go Edit Configurations (top right corner toolbar, name of your project | Debug):

Now there is an option: "Redirect input from". Just click the folder and find your input file.

Answer 2

It is not officially supported as of now, you can do the following.

If your input file is input.txt, you can use freopen to set stdin file as input.txt

freopen("input.txt","r",stdin);

if you want to do the same with your output:

freopen("output.txt","w",stdout);

this will work for std::cin (if using c++), printf, etc...

This will help you in debugging your code in clion

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