on Wed Feb 11 2009, Andrey Semashev <andrey.semashev-AT-gmail.com> wrote:
Vladimir.Batov@wrsa.com.au wrote:
int i; std::string s;
1) int i_from_s = boost::string::to<int>(s); // throws
bs::to_string?
The above is converting a string to an int, so to_string would be inappropriate. I.e. string::to and to_string are grammatically different.
2) std::string s_from_i = boost::string::from<int>(i);
bs::from_string?
Ditto. Plus, specifying int explicitly above is not only wasted, but error-prone.
3) bool s_is_i = boost::string::is<int>(i);
I like the way it is.
7) int i_from_s = boost::string::to<int>(s)(-1)(std::hex)(yet-another-manipulator);
Everything looks fine with me, except that I would suggest using a more explicit syntax for the default value specification. Like this:
boost::string::to<int>(s).with_default(-1);
boost::string::to<int>(s, _default=-1) ? see Boost.Parameter -- Dave Abrahams BoostPro Computing http://www.boostpro.com