Locale invariant guarantee of boost::lexical_cast<>

Question

I\'m using boost::lexical_cast(double) for converting doubles to string, generating JSON serialized byte stream, that is (on remote side) par

Answer 1

A better solution to this problem is to use a boost::locale instead of a std::locale as the globale locale. From the documentation:

Setting the global locale has bad side effects... it affects even printf and libraries like boost::lexical_cast giving incorrect or unexpected formatting. In fact many third-party libraries are broken in such a situation. Unlike the standard localization library, Boost.Locale never changes the basic number formatting, even when it uses std based localization backends, so by default, numbers are always formatted using C-style locale. Localized number formatting requires specific flags.

Boost locale requires you to specify explicitly when you want numeric formatting to be locale aware, which is more consistent with recent library decisions like std::money_put.