Re: Extremely slow string functions

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#2119

From: Thomas Maeder [TeamB]
Date: Fri, 06 Apr 2007 16:12

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Bob Gonder <notbg@notmindspring.invalid> writes:

> Thomas Maeder [TeamB] wrote:
>
>>> #include <stdlib.h>
>
>>>  return (int)rand()*(int)rand()+(int)rand();
>>
>>More importantly, the expression may overflow, in which case your
>>program has undefined behavior.
>
> Ummm, I think the maximum calculated value is 3FFF 8000, which is
> positive, and doesn't overflow unless int is 16bit.

RAND_MAX is an implementation-defined value. The Standard doesn't
guarantee that the quoted expression doesn't overflow.

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Newsgroups: borland.public.cppbuilder.nativeapi
Subject: Re: Extremely slow string functions
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Date: Fri, 06 Apr 2007 18:12:41 +0200
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