On 2017-04-13, Grant Edwards wrote:
> On 2017-04-13, Rob Gaddi <rgaddi@highlandtechnology.invalid> wrote:
>
>> No, C doesn't support exception handling. As a result, handling error
>> conditions in C is a huge pain for which (forward-only) goto is often,
>> while not the only remedy, the least painful one.
>
> Indeed. That is almost the only place I use 'goto' in C, and the
> almost the only place I see others use it. Very occasionally, you see
> a the error handling goto refactored into a backwards "goto retry":
>
> this code
>
> foo()
> {
> while (1)
> {
> <some code>
> if (<some-error-condition>)
> goto error:
> <more code>
> return;
>
> error:
> <recover-from-error-condition>
> }
> }
foo()
{
int done = 0;
while (! done)
{
<some code>
if (<some-error-condition>) {
<recover-from-error-condition>
} else {
done = 1;
<more code>
}
}
Bernd
--
Die Antisemiten vergeben es den Juden nicht, dass die Juden ‘Geist’
haben – und Geld. Die Antisemiten – ein Name der
‘Schlechtweggekommenenen’ [Friedrich Nietzsche]
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