glob headers

* Change del.p_=0 to del.p_=nullptr

A simple change (I hope) that cleans up compiler warnings and errors.

* Support older compilers

* Update throw_exception.hpp

* Update throw_exception.hpp

CMakeLists.txt

@@ -2,6 +2,8 @@
 # Distributed under the Boost Software License, Version 1.0.
 # See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
 
+if(NOT DEFINED IDF_TARGET)
+
 cmake_minimum_required(VERSION 3.5...3.16)
 project(boost_throw_exception VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
 
@@ -21,3 +23,20 @@ if(BUILD_TESTING)
   add_subdirectory(test)
 
 endif()
+
+else()
+
+FILE(GLOB_RECURSE headers include/*.h include/*.hpp)
+
+idf_component_register(
+    SRCS
+        ${headers}
+    INCLUDE_DIRS
+        include
+    REQUIRES
+        boost_assert
+        boost_config
+)
+
+endif()
+

include/boost/throw_exception.hpp

@@ -116,7 +116,7 @@ public:
 
         boost::exception_detail::copy_boost_exception( p, this );
 
-        del.p_ = 0;
+        del.p_ = BOOST_NULLPTR;
         return p;
     }