Formatted debug traces on win32

debug_win32.ipp

#pragma once

// <DEBUG WIN32 SNIPPET...
__pragma(warning(push, 1))
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
__pragma(warning(pop))
#include <sstream>

struct Win32Debug
{
  mutable std::ostringstream msg;
  template <typename T>
  friend std::ostream& operator<<(const Win32Debug& debug, T datum) {
    return debug.msg << datum;
  }
  ~Win32Debug() {
    OutputDebugStringA(msg.str().c_str());
  }
};
// ...DEBUG WIN32 SNIPPET>

void debug_example() {
  Win32Debug() << isQuantizedStartTime << isQuantizedDuration << isNonZeroDuration << std::endl;
}