From tessadriandrea at gmail.com  Thu Mar 28 11:51:40 2019
From: tessadriandrea at gmail.com (Andrea Tessadri)
Date: Fri Mar 29 10:25:13 2019
Subject: [xsde-users] SimpleType with restriction creates object with empty
	constructor
Message-ID: <CAD-cv=O-s=8TfRdquuCJLnULCoiCQk=Cqw5dhggP+RQ9ioEX+g@mail.gmail.com>

For a schema containing a simpleType like this:

<xs:simpleType name="CountryCodeISO">
      <xs:restriction base="xs:string">
          <xs:pattern value="[A-Z][A-Z]"/>
      </xs:restriction>
</xs:simpleType>

The result of:
xsde cxx-hybrid --generate-aggregate country.xsd

will be country.hxx containing a structure like this one:

class CountryCodeISO;

// CountryCodeISO (fixed-length)
//
class CountryCodeISO: public ::std::string
{
  public:
  CountryCodeISO ();
};

In such case there is no way to create an object of type CountryCodeISO
containing a string, since the only constructor available is the empty one.

Version: xsde-3.2.0-x86_64-linux-gnu
System: ubuntu 18.04
From boris at codesynthesis.com  Fri Mar 29 11:01:22 2019
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Fri Mar 29 11:19:04 2019
Subject: [xsde-users] SimpleType with restriction creates object with
	empty constructor
In-Reply-To: <CAD-cv=O-s=8TfRdquuCJLnULCoiCQk=Cqw5dhggP+RQ9ioEX+g@mail.gmail.com>
References: <CAD-cv=O-s=8TfRdquuCJLnULCoiCQk=Cqw5dhggP+RQ9ioEX+g@mail.gmail.com>
Message-ID: <boris.20190329165545@codesynthesis.com>

Andrea Tessadri <tessadriandrea@gmail.com> writes:

> <xs:simpleType name="CountryCodeISO">
>       <xs:restriction base="xs:string">
>           <xs:pattern value="[A-Z][A-Z]"/>
>       </xs:restriction>
> </xs:simpleType>
> 
> class CountryCodeISO: public ::std::string
> {
>   public:
>   CountryCodeISO ();
> };
> 
> In such case there is no way to create an object of type CountryCodeISO
> containing a string, since the only constructor available is the empty one.

In an effort to be minimal and to support usage without exceptions,
XSD/e employs the "default-construct then assign" approach for
initializing  the object model. So you can do this:

CountryCodeISO x;
x = "ZA";

Or:

x.assign ("ZA");

If you would like to use a more modern approach with proper constructors,
then you may want to consider using XSD.

From tessadriandrea at gmail.com  Fri Mar 29 11:17:47 2019
From: tessadriandrea at gmail.com (Andrea Tessadri)
Date: Mon Apr  1 09:46:46 2019
Subject: [xsde-users] SimpleType with restriction creates object with
	empty constructor
In-Reply-To: <boris.20190329165545@codesynthesis.com>
References: <CAD-cv=O-s=8TfRdquuCJLnULCoiCQk=Cqw5dhggP+RQ9ioEX+g@mail.gmail.com>
	<boris.20190329165545@codesynthesis.com>
Message-ID: <CAD-cv=P+9S6HLC=qhhAbCZ5sdBLeGknCWdiKfvSRakw360iTqw@mail.gmail.com>

Excellent!
Thanks a lot, it works.

On Fri, Mar 29, 2019 at 4:01 PM Boris Kolpackov <boris@codesynthesis.com>
wrote:

> Andrea Tessadri <tessadriandrea@gmail.com> writes:
>
> > <xs:simpleType name="CountryCodeISO">
> >       <xs:restriction base="xs:string">
> >           <xs:pattern value="[A-Z][A-Z]"/>
> >       </xs:restriction>
> > </xs:simpleType>
> >
> > class CountryCodeISO: public ::std::string
> > {
> >   public:
> >   CountryCodeISO ();
> > };
> >
> > In such case there is no way to create an object of type CountryCodeISO
> > containing a string, since the only constructor available is the empty
> one.
>
> In an effort to be minimal and to support usage without exceptions,
> XSD/e employs the "default-construct then assign" approach for
> initializing  the object model. So you can do this:
>
> CountryCodeISO x;
> x = "ZA";
>
> Or:
>
> x.assign ("ZA");
>
> If you would like to use a more modern approach with proper constructors,
> then you may want to consider using XSD.
>
From tessadriandrea at gmail.com  Fri Mar 29 12:02:45 2019
From: tessadriandrea at gmail.com (Andrea Tessadri)
Date: Mon Apr  1 09:46:46 2019
Subject: [xsde-users] Controlling double precision for xs:decimal
In-Reply-To: <CAD-cv=O-s=8TfRdquuCJLnULCoiCQk=Cqw5dhggP+RQ9ioEX+g@mail.gmail.com>
References: <CAD-cv=O-s=8TfRdquuCJLnULCoiCQk=Cqw5dhggP+RQ9ioEX+g@mail.gmail.com>
Message-ID: <CAD-cv=NHG72BX2CDt1oE8oJzxSCcYhuS5oRYumDAF_QnSwxgHQ@mail.gmail.com>

For a schema containing a xs:decimal like this:

<xs:simpleType name="LatitudeType">
   <xs:restriction base="xs:decimal">
          <xs:minInclusive value="-90"/>
          <xs:maxInclusive value="90"/>
          <xs:pattern value="(\+|-)?[0-9]?[0-9]\.[0-9]{5}[0-9]*"/>
   </xs:restriction>
</xs:simpleType>

The result of the serialization for:
Latitude().base_value(-83.12345);

will be:

<Latitude>-83.123450000000005</Latitude>

How to control double precision ?

Version: xsde-3.2.0-x86_64-linux-gnu
System: ubuntu 18.04