Hi Vladimir, I think ability to set persistent behavior would be nice. Something like this; 1. convert::set(locale_ = new_locale)(throw_ = true); 2. int i = convert<int>::from(str1, 0); 3. int j = convert<int>::from(str2, 0); The line #1 effect lines following it (#2 & #3). Take care, emre On Mon, May 04, 2009 at 02:12:10PM +1000, Vladimir.Batov@wrsa.com.au wrote:
I've incorporated, uploaded to the Vault and started playing with the Boost.Parameter-based interface that Andrey Semashev was insisting from the set-go. And it is definitely growing on me and I like
int i = convert<int>::from(str, 0)(locale_ = new_locale)(throw_ = true);
instead of the original
int i = convert<int>::from(str, 0) >> new_locale >> dothrow;
I think people generally did not like locales and dothrow behaving like manipulators.
The more I use the Boost.Parameter-based interface the more I am inclined to push it further and apply it to manipulators as well. I.e.
int i = convert<int>::from(str)(radix_ = 16);
instead of the original direct handling of std manipulators.
int i = convert<int>::from(str) >> std::hex;
Something, again, Andrey was advocating from the start. Now it feels like allowing io-stream manipulators exposes too much implementation detail and raises some unwarranted expectations.
That raises a few questions that I am hoping people could help me with:
1. Both interfaces (for locale and dothrow) are currently supported:
#1 int i = convert<int>::from(str, 0)(locale_ = new_locale)(throw_ = true); #2 int i = convert<int>::from(str, 0) >> new_locale >> dothrow;
Should I remove #1?
2. Both interfaces
#1 int i = convert<int>::from(str, 0) >> std::hex; #2 int i = convert<int>::from(str, 0)(radix_ = 16);
are currently supported. Should I move away from direct manipulator support and remove #1?
3. I only managed to figure out how to supply only one Boost.Parameter at a time like
int i = convert<int>::from(str, 0)(locale_ = new_locale)(throw_ = true);
I understand how to achieve
int i = convert<int>::from(str, 0)((locale_ = new_locale, throw_ = true));
(with double quotes) but do not want to go there as it looks somewhat unorthodox. I cannot figure out how to achieve the following
int i = convert<int>::from(str, 0)(locale_ = new_locale, throw_ = true);
(a list inside single quotes). I remember Andrey mentioning I could do that with a Boost.Parameter macro but I admit of not being bright enough to figure it out by myself. Any help would be greatly appreciated.
Thanks, Vladimir. _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost