[boost] HoF Problems with Boost 1.68 / LLVM-Clang / Windows

Subject: [boost] HoF Problems with Boost 1.68 / LLVM-Clang / Windows
From: Adam Hartshorne (adam.hartshorne_at_[hidden])
Date: 2018-09-20 08:08:19

The following two bits of code compile ok with MSVC, but using LLVM/Clang
produces the following errors.

Using the code in print.cpp

BOOST_HOF_STATIC_FUNCTION(simple_print) = fix(first_of(
    BOOST_HOF_LIFT(print_with_cout),
    BOOST_HOF_LIFT(print_with_range),
    BOOST_HOF_LIFT(print_with_tuple)
));

produces the following error

1>./boost_hof_functions.h(45): error : templates cannot be declared
inside of a local class
1>C:\boost_1_68_0\boost/hof/lift.hpp(90):  note: expanded from macro
'BOOST_HOF_LIFT'
1>C:\boost_1_68_0\boost/hof/lift.hpp(105):  note: expanded from macro
'BOOST_HOF_LIFT_CLASS'

And

BOOST_HOF_STATIC_LAMBDA_FUNCTION(print) = boost::hof::proj(simple_print);

produces

>./boost_hof_functions.h(51): error : non-const lvalue reference to type 'reveal_adaptor<...>' cannot bind to a temporary of type 'reveal_adaptor<...>'
1>C:\boost_1_68_0\boost/hof/lambda.hpp(241):  note: expanded from
macro 'BOOST_HOF_STATIC_LAMBDA_FUNCTION']

There are nearly identical errors with functions from in.cpp.