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authorAndrey Lihatskiy <alihatskiy@productengine.com>2023-12-14 02:47:44 +0200
committerAndrey Lihatskiy <alihatskiy@productengine.com>2023-12-14 02:47:44 +0200
commit4b98ae6e8a4c54fa70246beb5d7ff28a5590e819 (patch)
tree11e49d0cb85d8420ac614f039b32e5ec16202de3 /indra/llcommon/function_types.h
parent0db9bcf21fd4b7172e8a35cdb2805ccdc736e273 (diff)
parent07ace73c49918ffb70e99c2239849eaaabc1fe45 (diff)
Merge branch 'DRTVWR-587-maint-V' into DRTVWR-588-maint-W
# Conflicts: # indra/newview/llspatialpartition.cpp
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diff --git a/indra/llcommon/function_types.h b/indra/llcommon/function_types.h
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+/**
+ * @file function_types.h
+ * @author Nat Goodspeed
+ * @date 2023-01-20
+ * @brief Extend boost::function_types to examine boost::function and
+ * std::function
+ *
+ * $LicenseInfo:firstyear=2023&license=viewerlgpl$
+ * Copyright (c) 2023, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+#if ! defined(LL_FUNCTION_TYPES_H)
+#define LL_FUNCTION_TYPES_H
+
+#include <boost/function.hpp>
+#include <boost/function_types/function_arity.hpp>
+#include <functional>
+
+namespace LL
+{
+
+ template <typename F>
+ struct function_arity_impl
+ {
+ static constexpr auto value = boost::function_types::function_arity<F>::value;
+ };
+
+ template <typename F>
+ struct function_arity_impl<std::function<F>>
+ {
+ static constexpr auto value = function_arity_impl<F>::value;
+ };
+
+ template <typename F>
+ struct function_arity_impl<boost::function<F>>
+ {
+ static constexpr auto value = function_arity_impl<F>::value;
+ };
+
+ template <typename F>
+ struct function_arity
+ {
+ static constexpr auto value = function_arity_impl<typename std::decay<F>::type>::value;
+ };
+
+} // namespace LL
+
+#endif /* ! defined(LL_FUNCTION_TYPES_H) */