Re: [Mysql-cocoa-users] SMySQL_test

[Serge C. <co...@em...>]

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Hi;=0D
=0D
indeed in C, C++, ObjC and many other language a =3D is a function which =
=0D
returns the assigned object.=0D
Here the test is that fetchRowAsDictionnary returns nil if there is no =0D=

more row to fetch:=0D
then row =3D nil, and (row =3D ...) =3D nil (equivalent to NO or false).=0D=

=0D
It is then equivalent to :=0D
while ((row =3D [result fetchRowAsDictionary]) !=3D nil)=0D
=0D
I guess this is the answer to your question.=0D
=0D
=0D
Serge.=0D
=0D
Le mercredi 22 mai 2002, =C3=A0 06:37 AM, Famille GOUREAU-SUIGNARD a =
=C3=A9crit :=0D
=0D
> Hi,=0D
>=0D
> I've got a problem with the following bunch of source file. It is used =
=0D
> (and works perfectly) in SMySQL_Test, the software that tests SMySQL =0D=

> functions.=0D
>=0D
>     SMySQLResult	*result;=0D
>     NSDictionary	*row;=0D
>     unsigned int	count, i;		=0D
>=0D
>     result =3D [connection queryString:@"select * from test"];=0D
>     count =3D [result numOfFields];=0D
>=0D
>     while (row =3D [result fetchRowAsDictionary]) {=0D
>         for (i=3D0; i<count; i++) {=0D
>             NSString	*name =3D [names objectAtIndex:i];=0D
>             NSLog(@"%@ : %@\n", name, [row objectForKey:name]);=0D
>         }=0D
>     }=0D
>=0D
> My problem lies in the line : while (row =3D [result =0D
> fetchRowAsDictionary]) {=0D
> I'm quite new with C, C++ or ObjC, but I thought that between =0D
> the "(...)" of a while there should be a test. The "=3D" instruction =
is =0D
> not a test...=0D
>=0D
> Does anybody have an idea to explain this syntax that is perfectly =0D
> understood by PB (if not by me) ?=0D
>=0D
> Thanks.=0D
>=0D
> Camille=0D
>=0D
>=0D
> _______________________________________________________________=0D
>=0D
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> August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm=0D=

>=0D
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>=0D
>=0D
- ----------------------------------------------------=0D
Serge Cohen=0D
=0D
GPG Key ID: 1024D/69B1D346=0D
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