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Enable forward declaration of unwind_type() in msvc14.15 and later.

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Name lookup in msvc has changed between 14.14 and 14.15 making it consistent with other compilers. Forward declaration of unwind_type() is now required as it is for other compilers.

Resolves compilation errors identified in:

https://github.com/boostorg/python/issues/228
This commit is contained in:
Owens
2018-08-17 06:06:03 +10:00
committed by Stefan Seefeld
parent 72e254bf8b
commit 0d0cd711a7
1 changed files with 7 additions and 5 deletions
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12
include/boost/python/detail/unwind_type.hpp
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@@ -11,13 +11,15 @@
namespace boost { namespace python { namespace detail {
#ifndef _MSC_VER //if forward declared, msvc6.5 does not recognize them as inline
// forward declaration, required (at least) by Tru64 cxx V6.5-042
#if (!defined(_MSC_VER) || _MSC_VER >= 1915)
// If forward declared, msvc6.5 does not recognize them as inline.
// However, as of msvc14.15 (_MSC_VER 1915/Visual Studio 15.8.0) name lookup is now consistent with other compilers.
// forward declaration, required (at least) by Tru64 cxx V6.5-042 and msvc14.15
template <class Generator, class U>
inline typename Generator::result_type
unwind_type(U const& p, Generator* = 0);
// forward declaration, required (at least) by Tru64 cxx V6.5-042
// forward declaration, required (at least) by Tru64 cxx V6.5-042 and msvc14.15
template <class Generator, class U>
inline typename Generator::result_type
unwind_type(boost::type<U>*p = 0, Generator* = 0);
@@ -83,7 +85,7 @@ struct unwind_helper<false>
template <class Generator, class U>
inline typename Generator::result_type
#ifndef _MSC_VER
#if (!defined(_MSC_VER) || _MSC_VER >= 1915)
unwind_type(U const& p, Generator*)
#else
unwind_type(U const& p, Generator* = 0)
@@ -148,7 +150,7 @@ struct unwind_helper2<reference_to_pointer_>
// why bother?
template <class Generator, class U>
inline typename Generator::result_type
#ifndef _MSC_VER
#if (!defined(_MSC_VER) || _MSC_VER >= 1915)
unwind_type(boost::type<U>*, Generator*)
#else
unwind_type(boost::type<U>*p =0, Generator* =0)