sorry once more, I was trying with char* since I encountered with the previous problem, I forgot to change it. Now it produces uuid, that's really great I was able to make it at last =) thanks for your contributions... SA On Wed, May 12, 2010 at 4:30 PM, Saygin Arkan <saygenius@gmail.com> wrote:
To turn back to my problem =) , Here's my method:
string GeneratorUtils::getRandomID(){
random_generator gen; uuid u = gen();
//string str = boost::lexical_cast<string>(u); string str = boost::lexical_cast<char*>(u);
return str; }
And here's my test code:
int main(){ cout << "SAYGIN" << endl;
GeneratorUtils gen; cout << gen.getRandomID() << endl;
return 0; }
And here's the output: $ ~/DAIM_MPI_Correlation/utils$ g++ -c GeneratorUtils.cpp $ g++ -o test GeneratorUtils.cpp $ ./test SAYGIN terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast>
' what(): bad lexical cast: source type value could not be interpreted as target Aborted
Do you have any idea?
On Wed, May 12, 2010 at 4:05 PM, Thorsten Ottosen <nesotto@cs.aau.dk>wrote:
Emil Dotchevski skrev:
On Tue, May 11, 2010 at 6:00 AM, Andy Tompkins <atompkins@fastmail.fm>
wrote:
Hmm, I haven't really given it much thought. Since it doesn't need to be a member function, I would lean toward a standalone function. Do any other libraries have a similar function? I would likely create:
template <typename C, typename T, typename A> std::basic_string<C, T, A> to_basic_string(boost::uuids::uuid const& u);
as well as,
std::string to_string(boost::uuids::uuid const& u); std::wstring to_wstring(boost::uuids::uuid conts& u);
+1, unqualified call to to_string is how Boost Exception converts to string arbitrary objects stored in exception objects. If you use this form and someone adds a UUID to a boost::exception, it'll appear correctly in the output from boost::diagnostic_information.
-1
a to_string() member is IMO much preferred for simplicity and the encapsulation perspective. Just like std::bitset<N>::to_string().
There seem to be no standard in Boost for this :-(, e.g. filesystem uses ::string(), format uses ::str().
-Thorsten
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-- H. Saygin Arkan Tampere University of Tech. CS / III - +358466646156
-- H. Saygin Arkan Tampere University of Tech. CS / III - +358466646156