C / C++ / MFC

convert this c++ code to c programing

3-May-15 21:27

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Member 116584881-May-15 21:53

Member 11658488

1-May-15 21:53

#include <time.h>
#include <iostream>
#include <string>
#include <iomanip>
/*http://rosettacode.org/wiki/2048*/

typedef unsigned int uint;
using namespace std;
enum movDir { UP, DOWN, LEFT, RIGHT };

class tile
{
public:
tile() : val( 0 ), blocked( false ) {}
uint val;
bool blocked;
};

class g2048
{
public:
g2048() : done( false ), win( false ), moved( true ), score( 0 ) {}
void loop()
{
addTile();
while( true )
{
if( moved ) addTile();
drawBoard();
if( done ) break;
waitKey();
}
string s = "Game Over!";
if( win ) s = "You've made it!";
cout << s << endl << endl;
}
private:

void drawBoard()

{
system( "cls" );
cout << "SCORE: " << score << endl << endl;
for( int y = 0; y < 4; y++ )
{
cout << "+------+------+------+------+" << endl << "| ";
for( int x = 0; x < 4; x++ )
{
if( !board[x][y].val ) cout << setw( 4 ) << " ";
else cout << setw( 4 ) << board[x][y].val;
cout << " | ";
}
cout << endl;
}
cout << "+------+------+------+------+" << endl << endl;
}

void waitKey()

{
moved = false; char c;
cout << "(W)Up (S)Down (A)Left (D)Right "; cin >> c; c &= 0x5F;
switch( c )
{
case 'W': move( UP );break;
case 'A': move( LEFT ); break;
case 'S': move( DOWN ); break;
case 'D': move( RIGHT );
}
for( int y = 0; y < 4; y++ )
for( int x = 0; x < 4; x++ )
board[x][y].blocked = false;
}
void addTile()
{
for( int y = 0; y < 4; y++ )
for( int x = 0; x < 4; x++ )
if( !board[x][y].val )
{
uint a, b;
do
{ a = rand() % 4; b = rand() % 4; }
while( board[a][b].val );

int s = rand() % 100;
if( s > 89 ) board[a][b].val = 4;
else board[a][b].val = 2;
if( canMove() ) return;
}
done = true;
}

bool canMove()
{
for( int y = 0; y < 4; y++ )
for( int x = 0; x < 4; x++ )
if( !board[x][y].val ) return true;

for( int y = 0; y < 4; y++ )
for( int x = 0; x < 4; x++ )
{
if( testAdd( x + 1, y, board[x][y].val ) ) return true;
if( testAdd( x - 1, y, board[x][y].val ) ) return true;
if( testAdd( x, y + 1, board[x][y].val ) ) return true;
if( testAdd( x, y - 1, board[x][y].val ) ) return true;
}
return false;
}

bool testAdd( int x, int y, uint v )
{
if( x < 0 || x > 3 || y < 0 || y > 3 ) return false;
return board[x][y].val == v;
}

void moveVert( int x, int y, int d )
{
if( board[x][y + d].val && board[x][y + d].val == board[x][y].val && !board[x][y].blocked && !board[x][y + d].blocked )
{
board[x][y].val = 0;
board[x][y + d].val *= 2;
score += board[x][y + d].val;
board[x][y + d].blocked = true;
moved = true;
}
else if( !board[x][y + d].val && board[x][y].val )
{
board[x][y + d].val = board[x][y].val;
board[x][y].val = 0;
moved = true;
}
if( d > 0 ) { if( y + d < 3 ) moveVert( x, y + d, 1 ); }
else { if( y + d > 0 ) moveVert( x, y + d, -1 ); }
}

void moveHori( int x, int y, int d )
{
if( board[x + d][y].val && board[x + d][y].val == board[x][y].val && !board[x][y].blocked && !board[x + d][y].blocked )
{
board[x][y].val = 0;
board[x + d][y].val *= 2;
score += board[x + d][y].val;
board[x + d][y].blocked = true;
moved = true;
}
else if( !board[x + d][y].val && board[x][y].val )
{
board[x + d][y].val = board[x][y].val;
board[x][y].val = 0;
moved = true;
}
if( d > 0 ) { if( x + d < 3 ) moveHori( x + d, y, 1 ); }
else { if( x + d > 0 ) moveHori( x + d, y, -1 ); }
}

void move( movDir d )
{
switch( d )
{
case UP:
for( int x = 0; x < 4; x++ )
{
int y = 1;
while( y < 4 )
{ if( board[x][y].val ) moveVert( x, y, -1 ); y++;}
}
break;
case DOWN:
for( int x = 0; x < 4; x++ )
{
int y = 2;
while( y >= 0 )
{ if( board[x][y].val ) moveVert( x, y, 1 ); y--;}
}
break;
case LEFT:
for( int y = 0; y < 4; y++ )
{
int x = 1;
while( x < 4 )
{ if( board[x][y].val ) moveHori( x, y, -1 ); x++;}
}
break;
case RIGHT:
for( int y = 0; y < 4; y++ )
{
int x = 2;
while( x >= 0 )
{ if( board[x][y].val ) moveHori( x, y, 1 ); x--;}
}
}
}

tile board[4][4];
bool win, done, moved;
uint score;
};

int main( int argc, char* argv[] )
{
srand( static_cast<uint>( time( NULL ) ) );
g2048 g; g.loop();
return system( "pause" );
}

Re: convert this c++ code to c programing

Richard MacCutchan1-May-15 22:45

Re: convert this c++ code to c programing

1-May-15 22:45

Sorry, this site does not provide a code writing, or rewriting, service.

David Crow2-May-15 16:47

David Crow

2-May-15 16:47

Points #2 and #4 of this seem to apply to you.

Re: convert this c++ code to c programing

Munchies_Matt5-May-15 2:18

Munchies_Matt

5-May-15 2:18

Why not save yourself even more effort and just get your degree in the post? You will be as useless to the IT industry in either case.

Strange Compiler behavior

ForNow1-May-15 12:08

1-May-15 12:08

Hi
all of the sudden out of the clear blue sky in any of my CWinApp methods constructor Initinstance, any declaration of CEvent is flaged as an error say the complier doesn't recognize that type whether I declare it on the Stack CEvent myevent or on the heap CEvent *evenptr = new CEvent, If I declare globally or some other class CMainFrame for instance
its ok

Richard MacCutchan1-May-15 22:43

1-May-15 22:43

Have you included the correct header file, as shown in https://msdn.microsoft.com/en-us/library/efk30beh.aspx[^]?

ForNow2-May-15 15:12

2-May-15 15:12

I have stdafx.h if that's what you're referring too

I going to create a MFC MainFrame type project and cut and paste the code to it

thanks

Richard MacCutchan2-May-15 20:50

2-May-15 20:50

Er, no, that is a project file that should contain the #include statements for all the required headers. Have you checked the link I gave you for the name of the necessary header, and also checked that you have it included in your stdafx.h?

ForNow2-May-15 21:05

CWinThread::CAsyncSocket::Create issues

2-May-15 21:05

Thing is it compiled cleanly the day before I made some unrelated coding changes
And I started getting those
Errors
I started the project along time ago when I didn't know anything about MFC it was kind of sloppy this was a good opportunity for me to clean it up I created a project with the same name on a different drive and it looks good those compile errors went away
As soon as I finish i going to copy it back to the original spot overlay the code with this
Thanks

ForNow28-Apr-15 4:52

Code works in CWInThread constructer ?

28-Apr-15 4:52

Hi,

I have a derived CAsyncSocket class which is a protected member of a Derived CWinThread class

There are 4 of the derived CWinThread Classes each with their own derived CAsynSocket Class

I create or rather allocate storage for the derived CWinThread class on the heap via new

after I create the CWinThread derived class suspended and set various members as the ipaddr

Then I do a Resumethread

in the CwinThread::Initinstance I do the CAsyncSocket::Create

this is where the issue is

while tracing the code under VS debugger the code jumps out the CWinThread::Initinstance

back to my main line loop

When I allocate a CAsyncSocket Class on the stack outside of the loop and do a Create

everything is cool

I get a return code of 1

ForNow29-Apr-15 6:03

Re: Code works in CWInThread constructer ?

29-Apr-15 6:03

Hi
I moved my code from the initinstance to the CWinThread constructer and it worked ?

Don't know why

Albert Holguin1-May-15 4:40

Albert Holguin

1-May-15 4:40

What was the issue? ...you never actually say what the problem was.

Re: Code works in CWInThread constructer ?

ForNow1-May-15 6:16

swscanf_s White Space Help

1-May-15 6:16

Hi
I have a loop in my CWinApp::Initinstance where I create 4 Derived CWinThreads
a derived CAsyncSocket class is a protected member
When I step into with the debugger to the CasyncSocket::create it takes a wild which is in the CWinThread::Initinstance it takes a branch out the CWinThread::Initinstance back to the loop as if there some sort of exception I tried a try { around the code but it didn't go to the catch it just jumped out of the CWinThread::Initinstance back to the loop

C++

         for (i = 0, start_port = 11007; i < 4; start_port++, i++)
           {

           threadptr[i] = new SockCLeintThread(start_port);

           if (threadptr[i] == NULL)
               AfxMessageBox((LPCTSTR)"SockClientThreadFail",NULL,MB_ICONERROR);

            ret = threadptr[i]->CreateThread(CREATE_SUSPENDED);
                      if(ret == 0)
                         errcd = GetLastError();

// 
             threadptr[i]->flags.is_connected = 0;
             threadptr[i]->flags.busy = 0;
             threadptr[i]->ResumeThread();

C++

BOOL SockCLeintThread::InitInstance
{
    AfxSocketInit();
//        ipaddr = "192.168.1.4";
    // thisocket(myport); 
     ipaddr = (LPCTSTR)"10.0.0.205";    

                 if(thisocket.Create(thisocket.port,SOCK_STREAM,(FD_READ | FD_WRITE | FD_OOB | FD_ACCEPT | FD_CONNECT | FD_CLOSE),ipaddr)== 0)
          {
                          error_code =  thisocket.GetLastError();
                   }

     DWORD value;
     BOOL val, return_code;
     const void *valptr = &val;
      thisocket.AsyncSelect(FD_READ | FD_WRITE | FD_OOB | FD_ACCEPT | FD_CONNECT | FD_CLOSE); // request notifications
     val = 1;
     return_code = thisocket.SetSockOpt(SO_KEEPALIVE,valptr,sizeof(BOOL));//
     val = 1;
    return_code = thisocket.SetSockOpt(SO_OOBINLINE,valptr,sizeof(BOOL));
     value = 1;
     return_code = thisocket.IOCtl(FIONBIO,&value);
     return_code = thisocket.IOCtl(FIONREAD,&value);
     return_code = thisocket.IOCtl(SIOCATMARK,&value);
                  sockbuffer = new TCHAR[100];

}

When I move this code to the SockCLientThread constructor it works

Jesuaw28-Apr-15 4:09

Jesuaw

28-Apr-15 4:09

Hello,

A wchar_t array contains two sentences inside which I need to save in two separate variables.

C++

wchar_t str[] = L"'This is the first sentence' 'This is the second sentence'";

I want to split in a way that first sentence and second sentence equals to these:

wchar_t first_sentence[MAX_PATH]=L"'This is the first sentence'";
wchar_t second_sentence[MAX_PATH]=L"'This is the second sentence'";

I am using below code but it does not work as expected.

XML

#include "stdafx.h"
#include <wchar.h>
#include <windows.h>
#include <stdio.h>

int _tmain(int argc, _TCHAR* argv[])
{
    wchar_t str[] = L"'This is the first sentence' 'This is the second sentence'";

    wchar_t first_sentence[MAX_PATH];
    wchar_t second_sentence[MAX_PATH];
    swscanf_s(str, L"'%s' '%s'", first_sentence, _countof(first_sentence), second_sentence, _countof(second_sentence));

    printf("first_sentence=%ls\nsecond_sentence=%ls\n", first_sentence, second_sentence);

    system("PAUSE");
    return 0;
}

As far as I understand swscanf_s is pausing when it encountes the first white space. How am I suppose to get whole string between single quotes with swscanf_s please?

k505428-Apr-15 5:41

k5054

28-Apr-15 5:41

the format specifier you want is %[^'] i.e. all chars that are not a single quote.

Jesuaw28-Apr-15 6:50

Jesuaw

28-Apr-15 6:50

Thank you very much for your help. Works great.

One more question please. How can I select all the characters till to a specific word?

Say, I want to select all characters till "the" word? I tried

%[^(the)]

but to no avail.

Cheers

k505428-Apr-15 7:05

k5054

28-Apr-15 7:05

Even if that worked, it probably wouldn't do what you wanted - e.g. if the input text was "a small withered man with the axe", you'd get "a small wi" copied to your output variable.

Depending on what you're trying to do, maybe regex() might be a better tool in this case, though I'm not sure about regex() and wide strings.