#pragma comment(linker, "/entry:WinMainCRTStartup /subsystem:console") 대신 쓸만한 것

static const WORD MAX_CONSOLE_LINES = 500;

#include <fcntl.h>
#include <io.h>
#include <iostream>
#include <fstream>

void RedirectIOToConsole()
{
 int hConHandle;
 long lStdHandle;

 CONSOLE_SCREEN_BUFFER_INFO coninfo;

 FILE *fp;

 // allocate a console for this app

 AllocConsole();

 // set the screen buffer to be big enough to let us scroll text
 GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &coninfo);

 coninfo.dwSize.Y = MAX_CONSOLE_LINES;
 SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), coninfo.dwSize);

 // redirect unbuffered STDOUT to the console
 lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
 hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
 fp = _fdopen( hConHandle, "w" );
 *stdout = *fp;
 setvbuf( stdout, NULL, _IONBF, 0 );

 // redirect unbuffered STDIN to the console
 lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
 hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
 fp = _fdopen( hConHandle, "r" );
 *stdin = *fp;
 setvbuf( stdin, NULL, _IONBF, 0 );

 // redirect unbuffered STDERR to the console
 lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
 hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
 fp = _fdopen( hConHandle, "w" );
 *stderr = *fp;
 setvbuf( stderr, NULL, _IONBF, 0 );

 // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog
 // point to console as well
 std::ios::sync_with_stdio();
}