trying to simplify an algorithm
zhouhui at wam.umd.edu
Tue Mar 1 06:58:17 PST 2005
On Tue, Mar 01, 2005 at 01:52:47PM +0000, Bennett Todd wrote:
>But relational operators that _create_ booleans --- ==, !=, <, >, et
>al --- create 0 or 1, strictly.
Indeed, that is specified in the ANSI C standard.
However, I am an advocate of use booleans as booleans. Utilizing the
fact boolean is int in C seems nifty but obscures the readability.
I always frowns at statements such as
I prefer the usage:
if (NULL != fopen(...))...
It is only a few more typings. There is no difference in the produced
binary but the latter made it very clear that fopen returns integer
and we are testing whether it is NULL. In case fopen returns -1 on
error, the latter only need change NULL to -1. My point is the latter
creates consistency, which eases reading.
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