Re: math.random() when lua_Number is int

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• Subject: Re: math.random() when lua_Number is int
• From: Antero Vipunen <antero@...>
• Date: 2005年9月07日 10:14:20 +0700

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Graham Wilson wrote:

int r = rand()%RAND_MAX;
lua_pushnumber(L, (lua_Number)r / (lua_Number)RAND_MAX); /* Number between 0 and 1 */

Simple mathematics shows us that this will always push 0. Because:
0 <= r < RAND_MAX and so r/RAND_MAX == 0.
AMDG,
 Antero Vipunen.

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