So I wrote ths program to solve the 8-queens problem ( how can you put 8 queens on the board at once without any of them being able to attack any other).Any way I have good heuristics, as I Have traced throught the program and watched it solve the problem.It also compiles fine on my laptop with using M$ Visual C++ and on a Linux/GNU server using gcc.
My question is this. I have a function that gets called from main its called attack(). If the attack() (placing the queens on the board) fails it returns a value , (result =-1) ,if it works it returns a value of (result = 8). Now the attack() function returns to the main.If main() receives -1 it iterates the process again until it works, if it recieves an 8 the program halts and thats that.The problem is when the flow goes back into main() from attack() I can see that it is in main but when the the result,either -1 or 8, is refrenced an error occurs.I have no clue as to why it is doing this.I have tried returning the result value using pass-by value;pass-by refrence, pass-by pointer etc.
Has anyone else had a similar problem ever....?
and no this is not a homework problem.If it were I would have asked for help with something other that what will proably turn out to be a small syntax error.
I will email anyone my source code if they think they can help.
My question is this. I have a function that gets called from main its called attack(). If the attack() (placing the queens on the board) fails it returns a value , (result =-1) ,if it works it returns a value of (result = 8). Now the attack() function returns to the main.If main() receives -1 it iterates the process again until it works, if it recieves an 8 the program halts and thats that.The problem is when the flow goes back into main() from attack() I can see that it is in main but when the the result,either -1 or 8, is refrenced an error occurs.I have no clue as to why it is doing this.I have tried returning the result value using pass-by value;pass-by refrence, pass-by pointer etc.
Has anyone else had a similar problem ever....?
and no this is not a homework problem.If it were I would have asked for help with something other that what will proably turn out to be a small syntax error.
I will email anyone my source code if they think they can help.
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