C / C++ / MFC

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

void modifyvariable(int **varB)
{
    int temp;
    *varB = &temp;
}
 
void main()
{
    int varA;
    int *p = &varA;
    // here &varA and p both have the same value
    modifyvariable(&p);
    // here p points to the address of temp
}

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

//! Checks whether a directory exists.
//! @param  strDirectory  Directory
//! @return true if the directory exists, false otherwise.
bool dirExists
  (CString strDirectory)
{
  // Create full directory specification - return if unable
  TCHAR* fullPath = _tfullpath (NULL, strDirectory, 0);
  if (fullPath == NULL)
     return (false);
 
  // Check if directory exists by trying to make it the default directory
  TCHAR szCurrDir [_MAX_PATH];
  _tgetcwd (szCurrDir, _MAX_PATH - 1);
  long nStatus = _tchdir (fullPath);
  _tchdir (szCurrDir);
 
  // Return
  free (fullPath);    
  if (nStatus == 0)
     return (true);
  return (false);
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow