On Oct 12, 2006, at 12:57 PM, [EMAIL PROTECTED] wrote:
-------------- Original message --------------
From: John Kubie <[EMAIL PROTECTED]>
why i++ is clearer than i=i+1
In general basic and computer languages try to approximate english
sentences. I certainly use english approximations when I program.
i++ has no assigment so that gact taht it's doing one is not clear/
Secondly logically it could just as easily mean i = i+i. for example.
That it means increment the varible by one is only a C convention
and has no intrinsic meaning where as IMO i = i + 1 does.
The most confusing part of the RB idiom for increment is that a
beginner often sees that as an check for equality and of course it's
not.
Pascal solved that with a different operator for assignment and
equality. C did as well but they went and made them so similar AND
usable as either that it's a common source of grief
Who has never seen a C bug based on code like
if ( x = y )
which likely should read
if ( x == y )
the problem is the author may actually have meant to do the
assignment AND check for non zero with the first and thus the source
of odd bugs from this construct
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