in Visual Studio 2010 or 2008 [duplicate]

Because this header file doesn’t come with MSVC. Hence it cannot find it!

It comes with C POSIX library. The wikipedia says,

dirent.h is known to be included in
the following compilers:

  • Turbo C++ (DOS)
  • GCC (Cross-platform)
  • MinGW (Microsoft Windows)
  • Borland C++ Builder (Microsoft Windows)

Microsoft Visual C++ does not include
dirent.h

However, you can download free Windows implementation of dirent.h which you can use with Microsoft Visual Studio.

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