Qt-interest Archive, February 2007
QString isEmpty() weirdness
Message 1 in thread
Im returning a QString from a class. I return
QString("") if the vector element isnt found.
When I test for it on the return:
name = getString();
if (name.isEmpty())
{
error
}
else
{
do something
}
I always get the error condition. I did a cout
on the thing:
cout << "<" << name.toStdString() << ">" << endl;
and it prints <>
Im using 4.2.2, suggestions? Im mystified.
Jeff
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Message 2 in thread
Jeff Lacki wrote:
> Im returning a QString from a class. I return
> QString("") if the vector element isnt found.
> When I test for it on the return:
>
> name = getString();
> if (name.isEmpty())
> {
> error
> }
> else
> {
> do something
> }
>
> I always get the error condition. I did a cout
> on the thing:
>
> cout << "<" << name.toStdString() << ">" << endl;
>
> and it prints <>
>
> Im using 4.2.2, suggestions? Im mystified.
>
My suggestion is that the vector element was not found. Both your if
statement and cout seem to suggest the same thing.
--Dave
--
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Message 3 in thread
On 06.02.07 14:26:41, Jeff Lacki wrote:
> Im returning a QString from a class. I return
> QString("") if the vector element isnt found.
> When I test for it on the return:
>
> name = getString();
> if (name.isEmpty())
> {
> error
> }
> else
> {
> do something
> }
>
> I always get the error condition. I did a cout
> on the thing:
>
> cout << "<" << name.toStdString() << ">" << endl;
>
> and it prints <>
Uhm, and what exactly is the problem? Of course QString("") is an empty
QString, thats even documented. I don't see the problem.
Andreas
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Message 4 in thread
Ugh, sorry for the waste of bandwidth. my mind reversed
the logic I was looking at. I hate it when that happens.
Jeff
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