From: "Marp" <Marp AT 0 DOT 0 DOT 0 DOT 0>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: -- Random question --
Date: Sat, 24 Jul 1999 17:06:28 -0400
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References: <7nd0vu$igt$1 AT zingo DOT tninet DOT se>
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To: djgpp AT delorie DOT com
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Börje Granberg <borje DOT granberg AT ebox DOT tninet DOT se> wrote in message
news:7nd0vu$igt$1 AT zingo DOT tninet DOT se...
> I know there are commands like rand() and random() but how do I get a
random
> number between 1 and 100?
>
> In BASIC it is easy because there you get a random (float) number between
0
> and 1 that you can multiplicate with 100 and add 1, but I dont see that
> opportunity in C++ or have my eyes missed that part?
>
>
> --
> /Börje

You can use the remainder operator like this:

number = (rand() % 101) + 1;

This will generate a number from 1 to 100. You can also substitute rand()
with random() which generates numbers that are more random, but random()
isn't as portable. Don't forget to seed it at the start of your program like
this:

srand(time(0)); /* for rand() */
srandom(time(0)); /* for random() */