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From: | "John M. Aldrich" <fighteer AT cs DOT com> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: random number in range |
Date: | Sun, 01 Feb 1998 19:03:45 -0500 |
Organization: | Two pounds of chaos and a pinch of salt. |
Lines: | 21 |
Message-ID: | <34D50D61.F9D@cs.com> |
References: | <34D50550 DOT 48ED AT quantum DOT de> |
NNTP-Posting-Host: | ppp203.cs.com |
Mime-Version: | 1.0 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Tom Chojnacki wrote: > > Hi! > > A little problem: > how can I get random number from a given range. x = random() % 100 /* x will be 0 to 99 */ The mod operator (%) returns the remainder from the division of its operands. As long as the random number generator you're using is suitably random in its low bits (which DJGPP's random() is), using mod is an excellent way to clip to the desired range. -- --------------------------------------------------------------------- | John M. Aldrich | "Animals can be driven crazy by pla- | | aka Fighteer I | cing too many in too small a pen. | | mailto:fighteer AT cs DOT com | Homo sapiens is the only animal that | | http://www.cs.com/fighteer | voluntarily does this to himself." | ---------------------------------------------------------------------
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