eval¶
Header¶
#include <boost/hof/eval.hpp>
Description¶
The eval
function will evaluate a “thunk”. This can be either a nullary
function or it can be a unary function that takes the identity function as
the first parameter(which is helpful to delay compile-time checking).
Also, additional parameters can be passed to eval
to delay
compiliation(so that result can depend on template parameters).
Synopsis¶
template<class F, class... Ts>
constexpr auto eval(F&& f, Ts&&...);
Example¶
#include <boost/hof.hpp>
#include <cassert>
int main() {
assert(boost::hof::eval([]{ return 3; }) == 3);
}