On 2021-09-11 at 18:21:17 +0100,
Alan Gauld via Python-list <python-list@python.org> wrote:
> On 11/09/2021 15:41, Peter J. Holzer wrote:
>
> > How is C's do/while loop more horrible than Pascal's repeat/until?
>
> Because it is very hard to spot or distinguish from a normal
> while loop.
>
> while condition ;
>
> Is a valid (and fairly common) loop in C
>
> so code that has
>
> do{
> code
> }
> while condition;
>
> Looks, for non-trivial cases, like a lot of code followed
> by an empty while loop.
>
> The do is easy to miss and the while loop disguised as
> a repeat termination is confusing.
Well, yeah, except that only a macro would ever write it that way. :-)
At the very least, the code would be indented (making it easier to spot
the "do," before or after you see the while; and my apologies if you
intended it that way and it got lost somewhere between your intent and
my monitor):
do {
code;
}
while(condition);
(Side question: why put the "{" next to the "do," but the "}" and the
"while" on separate lines?)
And I would put the while on the same line as the closing brace (which
is also where I put the "else" in an if statement):
do {
code;
} while(condition);
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