Unnecessary injection of std::string dependency for BOOST_NO_EXCEPTIONS

[jplcz]

When using safe_numerics in embedded system (kernel mode code), where exceptions are disabled, uncessary dependency on std::string is created (std::exception and friends, as well). Currently I have patched this out locally via #ifdef BOOST_NO_EXCEPTIONS, however maybe there might be better solution ?

safe_numerics/include/boost/safe_numerics/exception.hpp

Line 118 in 13ca3d6

} safe_numerics_error_category {};

safe_numerics/include/boost/safe_numerics/exception.hpp

Line 190 in 13ca3d6

} safe_numerics_actions_category {};