Re: Thou shalt have no other gods before the ANSI C standard

From: Andrew Swallow (am.swallow_at_btopenworld.com)
Date: 02/27/05 

Date: Sun, 27 Feb 2005 17:54:33 +0000 (UTC)

Hank Oredson wrote:
[snip]
>>1. recomputing strlen on every iteration. Ugh.
>
>
> Won't the compiler find that it is invariant and fix it? :-)

No. strlen() is a subroutine. By default procedures are assumed to
return different values each time. The use of that construction tells
the compiler that the programmer *expects* a different value to be
returned and *wants* it to be called each time. Replacing strlen() by
getc() shows you why.

Andrew Swallow

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