Re: [Boost-users] Problems include the RANDOM LIBRARIES, in a console project, in Windows.

Subject: Re: [Boost-users] Problems include the RANDOM LIBRARIES, in a console project, in Windows.
From: Alberto Aliberti (albitexx_at_[hidden])
Date: 2013-07-16 15:09:28

Thank you, I solved the problem. It was my simple mistake.
Error: 
example: I have 7 moves, it are represented by a vector "moves [i]", where "i" is the index moves = n. moves.
So in this case will have a vector "moves [i]" with i = 0 to 6.
With the basis random function  of C, to obtain with n. moves = i = 7, a number from 0 to 6, I have write: i=rand() % i;
With the Boost random functions I have to write: boost::random::uniform_int_distribution<> dist(0,i-1);

I was wrong, because I wrote Boost function as C function, and not subtract a unit (I wrote (0, i) instead of (0, i-1). So I obtained the moves with an index vector from 0 to 7.
But the move index 7 did not exist  and bitboard the chess engine going to crash.
Now everything works ok with this correction. No problem


________________________________
 Da: Edward Diener <eldiener_at_[hidden]>
A: boost-users_at_[hidden] 
Inviato: Martedì 16 Luglio 2013 1:22
Oggetto: Re: [Boost-users] Problems include the RANDOM LIBRARIES, in a console project, in Windows.
 

On 7/15/2013 3:48 PM, Alberto Aliberti wrote:
> I used the Random libraries of Boost collection. I have implemented it
> in my program. A program for the chess analysis .  Now, at compile time
> I have no problem. Everything ok, the console project is compiled
> without errors. During run time, the functions of Boost Random
> libraries, correctly generate a random number. But after a few
> repetitions of the loop (from 2/3 to a few tens of loops), the program
> crashes. The strange thing that the crash does not occur in the
> functions where I use the random functions, but occurs in the chess
> engine that does not use these functions, and thus in theory should not
> be influenced by it. But if I do not use the functions of Boost library
> and use the basic function of C + + (rand ();) I have no problems.
> I work in Windows. My project is a console project compiled with VC + +2010.
> Also I have wrote a test program with VC + +2010, which generates a
> sequence of random numbers, using Boost libraries. In this case I have
> no problems. Only when I implement the libraries in the chess program I
> have problems. So it seems that your libraries are in conflict with the
> chess engine. What do you recommend for the search for the cause of the
> problem?

Use the IDE debugger and when the program crashes look at the call stack 
to see where it crashes and why it is happening.


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