Using std:fstream how to deny access (read and write) to the file

by

You cannot do it with the standard fstream, you’ll have to use platform specific functions.

On Windows, you can use CreateFile() or LockFileEx(). On Linux, there is flock(), lockf(), and fcntl() (as the previous commenter said).

If you are using MSVC, you can pass a third parameter to fstream’s constructor. See the documentation for Visual Studio 6 or newer versions. Of course it won’t work with other compilers and platforms.

Why do you want to lock others out anyway? There might be a better solution…

More Related Contents:

  1. why iam unable to concatenate the string here?
  2. Plotting points using Nested For Loops
  3. C++11 does not deduce type when std::function or lambda functions are involved
  4. How to make cin take only numbers
  5. When should I really use noexcept?
  6. Reason to Pass a Pointer by Reference in C++?
  7. Why is a pure virtual function initialized by 0?
  8. Mutex example / tutorial? [closed]
  9. C/C++ include header file order
  10. How to check if a std::thread is still running?
  11. What exactly is std::atomic?
  12. check variadic templates parameters for uniqueness
  13. How to recover view space position given view space depth value and ndc xy
  14. Can an enum class be converted to the underlying type?
  15. Removing a non empty directory programmatically in C or C++
  16. C++ typedef interpretation of const pointers
  17. Thread pool using boost asio
  18. Converting std::string to std::vector
  19. Command working in terminal, but not via QProcess
  20. How do I get the HMODULE for the currently executing code?
  21. Replacing ld with gold – any experience?
  22. Can’t C++ POD type have any constructor?
  23. Difference between initialization of static variables in C and C++
  24. Convert Eigen Matrix to C array
  25. std::vector resize downward
  26. string::size_type instead of int
  27. How to add WTL and ATL to visual studio c++ express 2008
  28. Is it a strict aliasing violation to alias a struct as its first member?
  29. How does std::forward receive the correct argument?
  30. Is uninitialized data behavior well specified?

Leave a Comment