#include <string>
#include <winstl/filesystem/memory_mapped_file.hpp>
#include <mmsystem.h>


void main()
{
   // What I can do today is (using the SND_MEMORY flag) :
   winstl::memory_mapped_file myWAVFile("beep.wav");
   ::PlaySound((LPCSTR)myWAVFile.memory(), 0, SND_MEMORY | SND_SYNC);

   // This is essentially identical to doing this (note using the SND_FILENAME flag):
   ::PlaySound("beep.wav", 0, SND_FILENAME | SND_SYNC);
   // this is unfortunate since the file needs to be read from the HDD for every call.


   // I'd like to hold the file in memory 

   // To do this, I want to do it this way:

   
   // 1. this would be my member
   // ...
   
   // winstl::memory_mapped_file myWAVFile_; // !!! I can't do this now. No empty ctor!!
   winstl::memory_mapped_file myWAVFile_("dummy_file.txt"); // !!!  I must use a dummy file!


   // 2. somewhere else in an initialization/configuration part I would do this:
   std::string myWAVFileName = "beep.wav"; // I know this at this stage
   winstl::memory_mapped_file tmp(myWAVFileName.c_str());
   // if we got here all is well...
   tmp.swap(myWAVFile_);


   // 3. then... every time I want to play the file I do this:
   ::PlaySound((LPCSTR)myWAVFile_.memory(), 0, SND_MEMORY | SND_SYNC);
}