在同一段代碼中聲明和未聲明的標識符 - C2065 VS2010 C++

Question

在我的int main（）代碼段中，我聲明瞭一個標識符（tile）。在某些行上，標識符認爲它是未聲明的，而在其他行上則認爲它是聲明。初始聲明在所有括號之外（主要除外）。爲什麼會發生？

int main(int argc, char* args[]) 
{ 
//Quit flag 
bool quit = false; 

//The dot 
Dot myDot; 

//The tiles that will be used 
Tile *tiles[ TOTAL_TILES ]; 

//The frame rate regulator 
Timer fps; 

//Initialize 
if(init() == false) 
{ 
    return 1; 
} 

//Load the files 
if(load_files() == false) 
{ 
    return 1; 
} 

//Clip the tile sheet 
clip_tiles(); 

//Set the tiles 
if(set_tiles(tile) == false) 
{ 
    return 1; 
} 

//While the user hasn't quit 
while(quit == false) 
{ 
    //Start the frame timer 
    fps.start(); 

    //While there's events to handle 
    while(SDL_PollEvent(&event)) 
    { 
     //Handle events for the dot 
     myDot.handle_input(); 

     //If the user has Xed out the window 
     if(event.type == SDL_QUIT) 
     { 
      //Quit the program 
      quit = true; 
     } 
    } 

    //Move the dot 
    myDot.move(tiles); 

    //Set the camera 
    myDot.set_camera(); 

    //Show the tiles 
    for(int t = 0; t < TOTAL_TILES; t++) 
    { 
     tiles[ t ]->show(); 
    } 

    //Show the dot on the screen 
    myDot.show(); 

    //Update the screen 
    if(SDL_Flip(screen) == -1) 
    { 
     return 1; 
    } 

    //Cap the frame rate 
    if(fps.get_ticks() < 1000/FRAMES_PER_SECOND) 
    { 
     SDL_Delay((1000/FRAMES_PER_SECOND) - fps.get_ticks()); 
    } 
} 

//Clean up 
clean_up(tile); 

return 0; 
} 

我的問題是clean_up (tile);和set_up (tile); - 或者至少這就是我的錯誤代碼排隊。

Answer 1

tile和tiles不是相同的標識符。