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I have gone through various questions on the internet to execute a cpp file from python or another cpp file, however, I faced some issues that I would like to share.

Case 1.

a) When I try to run a cpp file from python as described here, I get this error hp, ht, pid, tid = _winapi.CreateProcess(executable, args, FileNotFoundError: [WinError 2] The system cannot find the file specified. However, a.out is created inside the same directory but it still says no file found.

Case 2.

a) When I try to run .cpp file from another cpp file as described here, I don't get an error but let's say I want to run a.cpp from b.cpp so first I need to build a.exe and then call system("a.exe") from b.cpp code, but I want something as shown below since I don't want to manually create an executable file for a.cppevery time.

// b.cpp
method("a.cpp");
OR
command to create a.exe 
system("a.exe")
Improve this question
7
  • What do you mean by "execute a cpp file"? C++ code is not executed, it is compiled and linked with other C++ code to produce an executable. Are just trying to call a function defined in another .cpp file? Can you show minimal reproducible example of what you are trying to achieve? Commented Apr 4, 2022 at 8:06
  • You can't "run" or "execute" C++sourc files. Source files must be built and linked into an executable program before you can run the generated executable. If you want to avoid rebuilding every time, perhaps use a tool such as Make to build and execute? Commented Apr 4, 2022 at 8:06
  • c++ is a compiled language, you can't avoid creating an executable Commented Apr 4, 2022 at 8:06
  • 1
    With that said, there do exists a couple of C++ interpreters which can compile and link C++ source files in memory, and run them from memory. Commented Apr 4, 2022 at 8:08
  • @Yksisarvinen I am replicating the same thing stackoverflow.com/a/58422966/13248217 as described here, I am not calling any function defined in another .cpp file Commented Apr 4, 2022 at 8:10
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