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test/cmake_test/CMakeLists.txt

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+# Copyright 2021-2024 Alexander Grund
+# 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
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(cmake_subdir_test LANGUAGES CXX)
+
+# Those 2 should work the same
+# while using find_package for the installed Boost avoids the need to manually specify dependencies
+if(BOOST_CI_INSTALL_TEST)
+    find_package(boost_concept_check REQUIRED)
+else()
+    set(BOOST_INCLUDE_LIBRARIES concept_check)
+    add_subdirectory(../../../.. deps/boost EXCLUDE_FROM_ALL)
+endif()
+
+add_executable(main main.cpp)
+target_link_libraries(main Boost::concept_check)
+
+enable_testing()
+add_test(NAME main COMMAND main)

test/cmake_test/main.cpp

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+// Copyright David Abrahams 2006. 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)
+#ifndef BOOST_LIBS_CONCEPT_CHECK_FAKE_SORT_DWA2006430_HPP
+# define BOOST_LIBS_CONCEPT_CHECK_FAKE_SORT_DWA2006430_HPP
+
+# include <iterator>
+# include <boost/concept/requires.hpp>
+# include <boost/concept_check.hpp>
+
+namespace fake
+{
+  using namespace boost;
+  
+  template<typename RanIter>
+  BOOST_CONCEPT_REQUIRES(
+      ((Mutable_RandomAccessIterator<RanIter>))
+      ((LessThanComparable<typename Mutable_RandomAccessIterator<RanIter>::value_type>))
+    
+    , (void))
+      sort(RanIter,RanIter)
+  {
+ 
+  }
+}
+
+#endif // BOOST_LIBS_CONCEPT_CHECK_FAKE_SORT_DWA2006430_HPP
+// Copyright David Abrahams 2006. 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)
+#include <vector>
+#undef NDEBUG
+
+int main()
+{
+  std::vector<int> v;
+  fake::sort(v.begin(), v.end());
+  return 0;
+}