"Rozental, Gennadiy" <[EMAIL PROTECTED]> writes:
> Hi,
>
> Is there neat way with MPL to implement conditional expessions without
> introducing aditional structures. For example:
>
> template<typename Container>
> void
> foo( Container& c )
> {
> // pseudo code
> [if ( c is reservable , i.e. has method reserve )
> c.reserve( 100 );
> ]
> ...
> }
>
> Gennadiy.
If I understand the question correctly (not sure I do because it's
vaguely worded), the answer is no. C++ compilation in general is not
lazy, so you can't defer the call to reserve() unless you go through a
level of template indirection.
--
David Abrahams
[EMAIL PROTECTED] * http://www.boost-consulting.com
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