C++ - How to have multiple threads write to a file

Question

I am currently writing a c++ program that uses threads to write strings to a file. I am using ofstream to write these strings, and I noticed that only one of the threads has acc

Answer 1

Having multiple threads to write to the same file can lead to some serious troubles. You can try synchronizing the process of writing, by using critical section, for example(using OpenMP):

#pragma omp critical [(name)]
{
   write_to_file
}

or using WinApi: https://msdn.microsoft.com/en-us/library/windows/desktop/ms686908(v=vs.85).aspx