enable_if.h

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#ifndef RCPP_TRAITS_ENABLE_IF_H
#define RCPP_TRAITS_ENABLE_IF_H
 
namespace Rcpp {
namespace traits {
 
template <bool B, typename T = void>
struct enable_if {};
 
template <typename T>
struct enable_if<true, T> {
    typedef T type;
};
 
}
}
 
#endif