Generating Random Numbers in Visual C++

[pac1085]

Anyone know how to do this? In borland, I just use stdlib.h, but that doesnt work in VC++6. Heres an except of what I did:

void GetInts(int highNum, int & x, int & y)
{
randomize();
x=(random(highNum)+1);
y=(random(highNum)+1);
}

Works fine in Borland, but not in MSVC++.

 

[atom]

Try rand() instead of randomize()?

 

[pac1085]

OK, I just tried rand(); and that error went away...im still getting the other error, "C:\TempC++\FlashCards.cpp(85) : error C2065: 'random' : undeclared identifier" for
x=(random(highNum)+1);
y=(random(highNum)+1);

 

[ViRGE]

If you want, I have a whole class for generating random numbers for both Borland and VC++. Just give me the word, and I'll email it to ya, along with the instructions.

 

[beer]

I too have a class, I'm using it with the Metrowerks compiler now.

 

[bUnMaNGo]

srand(seed); // where seed is a number to start from I guess... I think you need to #include <stdlib.h>

 

[FatAlbo]

Include time.h and stdlib.h

srand(time(NULL));

This uses the number of seconds after midnight of the current day (return value of time(NULL)) as the seed value. Don't call srand() more than one time in your program or else the numbers won't be random due to the seed value being changed. Use rand() to generate the random number.