🚀 go-pugleaf

Lars Farm <lars.farm@nts.mh.se> wrote:
> 
> Is "pair<T1,T2>" valid as function argument where the
> declaration expects "const pair<const T1,T2>&"?

[It would allow: ]
> void f( string a, string b )
> {
>     map<string,string> m;
>     ...
>     m.insert( make_pair(a,b) ); // valid c++?  [yes, now.]

The definition of the template pair<> was changed at the March '96
meeting specifically to allow this. 

pair<> now has a template constructor.  Of course that is of little
use to you (for now) if you (like most of us) don't yet have a compiler
that supports member templates.  In the meantime you might like to 
write a little template function, make_map_pair<>().

If we had type deduction from constructor arguments, even make_pair<>()
would be unnecessary.   Next time, next time.

Nathan Myers
ncm@cantrip.org  http://www.cantrip.org/


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