Re: A predicate testing a data member
{ Please avoid top-posting, and remove any unnecessary parts from
your quoting. -mod }
While waiting for lambdas of C++0x, you could try boost::lambda.
http://www.boost.org/doc/libs/1_39_0/doc/html/lambda.html
HTH,
Goran.
On Aug 11, 8:42 pm, Seungbeom Kim <musip...@bawi.org> wrote:
Given the struct below:
struct T
{
bool f() const;
};
I can use std::mem_fun(&T::f) as a predicate testing f() on each T object,
as in:
std::vector<T*> tv(...);
n = std::count_if(tv.begin(), tv.end(), std::mem_fun(&T::f));
Can I do the same thing with a data member, instead of a member function,
for a struct such as the one below:
struct T
{
bool d;
};
std::vector<T*> tv(...);
n = std::count_if(tv.begin(), tv.end(), /* ? ? ? */);
... without writing a custom functor, of course. :)
--
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