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This is the documentation for a snapshot of the master branch, built from commit 9753a37322.

Struct template is_extension

boost::proto::is_extension — Boolean metafunction that can be used to enable the operator overloads in the exops namespace for the specified non-Proto terminal type.


// In header: <boost/proto/operators.hpp>

template<typename T> 
struct is_extension :  is_expr< T > {