Home » U++ Library support » U++ Core » Xmlize default value
| Xmlize default value [message #37808] |
Wed, 14 November 2012 10:27  |
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koldo
Messages: 3432
Registered: August 2008
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Senior Veteran |
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Hello all
A possible idea to improve Xmlize/Serialize functions would be to add a default value to be used when no data is found loading the class.
It could be like this
void Xmlize(XmlIO &xml) {
xml
("MyString", myString, "Default value")
("MyDouble", myDouble, 1200.2)
;
}
Best regards
Iñaki
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| Re: Xmlize default value [message #42003 is a reply to message #41707] |
Mon, 10 February 2014 15:07  |
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mirek
Messages: 14256
Registered: November 2005
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Ultimate Member |
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I have implemented this, but I have encountred nasty problem on the way. All works fine except for string, where there is unresolvable overloading ambiguity with
template <class T> XmlIO operator()(const char *tag, const char *itemtag, T& var);
which is variant intended to choose tag of items while serializing containers.
The only nice solution would be to change this non-operator method, something like
template <class T> XmlIO Container(const char *tag, const char *itemtag, T& var);
or perhaps possible remove it completely (currently, there are also default variants with "item", "key" etc...).
Any suggestions?
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