RE: coding rules for template classes

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coding rules for template classes
\ Rolf Schumacher (18 Oct 2006)
. \ John \(Eljay\) Love-Jensen (18 Oct 2006)

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Subject:	RE: coding rules for template classes
Group:	Gcc-help
From:	John \(Eljay\) Love-Jensen
Date:	18 Oct 2006

Hi Rolf,

Your questions are off topic for this forum.

> Does someone know of good coding rules for template classes, other than "put all in the .h file"?

Look here...
http://www.parashift.com/c++-faq-lite/templates.html

> If a template declaration is separated from the definition as to deliver declaration only to the user how will the definition get compiled to code?

It won't. The declaration+definition of a template is different from the instantiation of a template.

It would be like saying "I want to have 'inline int DoSomething(int, int);' declaration in the header for delivery to the user, but the definition elsewhere where the user can't see it. How will the definition get compiled (instantiated) to the user's code?"

> Do I need a third "instantiation" file? Is there some literature about this around?

There is something like this, but it doesn't do what you want. And it isn't supported very well by C++ compiler vendors in general, so tends to be used infrequently.

For GCC, look here...
http://gcc.gnu.org/onlinedocs/gcc/Template-Instantiation.html

HTH,
--Eljay