Add mutability binary view

cmake/compile_options.cmake

@@ -46,6 +46,7 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "C
         -Wshadow # warn the user if a variable declaration shadows one from a parent context
         -Wsign-conversion # warn on sign conversions
         -Wunused # warn on anything being unused
+        "$<$<CXX_COMPILER_ID:Clang>:-Wno-error=#warnings>" # don't error on #warning about deprecated ciso646 header in C++20
         $<$<CXX_COMPILER_ID:Clang>:-Wno-c++98-compat> # do not warn on use of non-C++98 standard
         $<$<CXX_COMPILER_ID:Clang>:-Wno-c++98-compat-pedantic>
         $<$<CXX_COMPILER_ID:Clang>:-Wno-documentation>

include/sparrow/layout/mutable_array_base.hpp

@@ -350,7 +350,7 @@ namespace sparrow
     template <class D>
     constexpr auto mutable_array_base<D>::erase(const_iterator first, const_iterator last) -> iterator
     {
-        SPARROW_ASSERT_TRUE(first < last);
+        SPARROW_ASSERT_TRUE(first <= last);
         SPARROW_ASSERT_TRUE(this->cbegin() <= first)
         SPARROW_ASSERT_TRUE(last <= this->cend());
         const difference_type first_index = std::distance(this->cbegin(), first);