3rdParty/boost/1.78.0/libs/hof/doc/src/configurations.md
There are several configuration macros that control the behavior of Boost.HigherOrderFunctions library.
+-----------------------------------------+--------------------------------------------------------------------------------+
| Name | Description |
+=========================================+================================================================================+
| ``BOOST_HOF_CHECK_UNPACK_SEQUENCE`` | Unpack has extra checks to ensure that the function will be invoked with the |
| | sequence. This extra check can help improve error reporting but it can slow |
| | down compilation. This is enabled by default. |
+-----------------------------------------+--------------------------------------------------------------------------------+
| ``BOOST_HOF_NO_EXPRESSION_SFINAE`` | This controls whether the library will use expression SFINAE to detect the |
| | callability of functions. On MSVC, this is enabled by default, since it does |
| | not have full support for expression SFINAE. |
+-----------------------------------------+--------------------------------------------------------------------------------+
| ``BOOST_HOF_RECURSIVE_CONSTEXPR_DEPTH`` | Because C++ instantiates `constexpr` functions eagerly, recursion with |
| | `constexpr` functions can cause the compiler to reach its internal limits. The |
| | setting is used by the library to set a limit on recursion depth to avoid |
| | infinite template instantiations. The default is 16, but increasing the limit |
| | can increase compile times. |
+-----------------------------------------+--------------------------------------------------------------------------------+