[Info-vax] decrementing & for loops in C

[Bill Gunshannon]

In article <gk534r$677$1 at south.jnrs.ja.net>,
	"Richard Brodie" <R.Brodie at rl.ac.uk> writes:
> 
> <johnwallace4 at yahoo.co.uk> wrote in message news:09411eb9-a739-4e87-9278-
> 
>> Some kinder compilers will (optionally) offer a warning when an
>> assignment rather than a logical expression is used in this context.
> 
> /warn=enable=questcode is a reasonable balance between passing
> probable errors silently.

The original code is not "questionable", it is 100% correct.  And,
as I stated elsewhere, a really good optimizing compiler, after
examining the assembler generated by that piece of code would find
that it was always successful and would optimize the loop out
completely.

> 
> C minimalists will argue that the correct way to write 'i != 0' is 'i'. 

I have been doing C for almost 30 years and even I would not do that,
specifically, for stylistic reasons.  Not every C programmer writes
his code so that it can't be maintained.

bill

-- 
Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
billg999 at cs.scranton.edu |  and a sheep voting on what's for dinner.
University of Scranton   |
Scranton, Pennsylvania   |         #include <std.disclaimer.h>