Hi, There are a lot of feature requests to support compilation with disabled exceptions #5731, #5076, #5393, #5800. Fix is trivial and well known: replace throw x; with BOOST_THROW_EXCEPTION(x); in a converter_policies.hpp file. But the library maintainer does not like BOOST_THROW_EXCEPTION because of code bloat. Can I apply another trivial fix: struct def_overflow_handler { void operator() ( range_check_result r ) // throw(negative_overflow,positive_overflow) { #ifndef BOOST_NO_EXCEPTIONS if ( r == cNegOverflow ) throw negative_overflow() ; else if ( r == cPosOverflow ) throw positive_overflow() ; #else if ( r == cNegOverflow ) ::boost::throw_exception(negative_overflow()) ; else if ( r == cPosOverflow ) ::boost::throw_exception(positive_overflow()) ; #endif } } ; Adding this will fix all the tickets and allow some of the dependent libraries to build with disabled exceptions. Boost.Lexical_cast tests will cover Boost.Numeric usage cases with disabled exceptions. Best regards, Antony Polukhin