__This_Documentation__
__Compilers_and_Platforms__
__Code_Organization__
+ __Build__
__Contract_Programming_Overview__
__Assertions__
__Benefits_and_Costs__
__Function_Overloads__
__Lambdas_Loops_Code_Blocks_and_constexpr__
__Implementation_Checks__
- __Old_Value_Copies_at_Body__
+ __Old_Values_Copied_at_Body__
__Named_Overrides__
__Access_Specifiers__
__Throw_on_Failures_and_noexcept__