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C++ Discussion Thread
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Oct 24th, 2008

Compiler error

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This code is giving me the error "expected primary-expression before ']' token." After googling and looking around Daniweb I still cannot find what this means. Can anyone enlighten me?

C++ Syntax (Toggle Plain Text)
int board[*width][*height];
          if(OpenBoard(boardName, width, height, board[][*height]))
          {
 
          }
 
//...
//function definition...
 
bool OpenBoard(std::string *boardFileName, int *width, int *height, int board[][100])
int board[*width][*height];
          if(OpenBoard(boardName, width, height, board[][*height]))
          {
                
          }

//...
//function definition...

bool OpenBoard(std::string *boardFileName, int *width, int *height, int board[][100])

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dmanw100

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Posting Whiz in Training

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Oct 24th, 2008

Re: Compiler error

Arrays need to be declared with constants, not variables.

Dave Sinkula

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long time no c

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Oct 24th, 2008

Re: Compiler error

Well i dont think arrays can be initialised with variables.

i think vectors are the suitable task for the job.

Sky Diploma

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Practically a Posting Shark

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Oct 24th, 2008

Re: Compiler error

You can't declare arrays using sizes available at run-time.

Given that your function definition has a constant, how about

C++ Syntax (Toggle Plain Text)
int board[100][100];
          if(OpenBoard(boardName, width, height, board))
          {
 
          }
 
//...
//function definition...
 
bool OpenBoard(std::string *boardFileName, int *width, int *height, int board[][100])
int board[100][100];
          if(OpenBoard(boardName, width, height, board))
          {
                
          }

//...
//function definition...

bool OpenBoard(std::string *boardFileName, int *width, int *height, int board[][100])

But since this is C++, how about
std::vector< std::vector<int> > board;

Salem

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Posting Sage

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Oct 24th, 2008

Re: Compiler error

Thanks guys I really appreciate it! I've been puzzled for a few hours haha

dmanw100

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