Re: Multiple Feature entries from getConfigEntry().

"Troy A. Griffitts" <[email protected]>
Newsgroups gmane.comp.literature.sword.devel
Message-ID <[email protected]> 
Try changing your begin and end iterator types to const, e.g.

sword::ConfigEntMap::const_iterator


On June 11, 2024 21:34:52 GMT+02:00, "David "Judah's Shadow" Blue" <[email protected]> wrote:
>On Monday, May 20, 2024 2:37:07 PM EDT David "Judah's Shadow" Blue wrote:
>> On Wednesday, May 15, 2024 9:01:14 AM EDT Troy A. Griffitts wrote:
>> > Hi David,
>> > 
>> > Yeah, so a module's config is simply a multimap<SWBuf, SWBuf>.  We
>> > extend multimap with our own class multimapwithdefault to make it nice
>> > 
>> > to work with when there is only one entry so you can still simply say:
>> >   SWBuf x = configEntries["mykey"];
>> > 
>> > Just like a map works, but if there is more than one entry, for your key
>> > (which is allowed by multimap) the behavior is undefined.  You'll get
>> > one of the entries, but not sure which one.
>> > 
>> > So, for cases when you want to read multiple entries for a key, you'll
>> > 
>> > have to use the standard multimap iterators,  something like the 
>> > following:
>> >      ConfigEntMap::iterator begin =
>> > 
>> > module->getConfig().lower_bound("Feature");
>> > 
>> >      ConfigEntMap::iterator end   =
>> > 
>> > module->getConfig().upper_bound("Feature");
>> > 
>> >      while (begin != end) {
>> >      
>> >          SWBuf featureValue = begin->second;
>> >          ++begin;
>> >      
>> >      }
>> > 
>> > Hope this helps,
>> 
>> It does, however, when I try this I get errors about no viable overloaded
>> '='. I've tried both declaring my ConfigEntMap::iterators before hand and
>> assigning them in the declaration, the errors differ slightly, but it all
>> boils down to the compiler not being able to decide if it should be an
>> implicit copy or an implicit move. I assume it should be a copy, but I'm
>> not sure how to go about specifying that in the code.
>
>I've still not managed to get any headway on getting this to compile. Here's 
>my code:
>
>If(this->mod->getConfigEntry("Feature") != NULL) {
>    sword::ConfigEntMap::iterator begin;
>    sword::ConfigEntMap::iterator end;
>
>    begin = this->mod->getConfig().lower_bound("Feature");
>    end = this->mod->getConfig().upper_bound("Feature");
>
>    while(begin != end) {
>        featureSet += "Feature: ";
>        featureSet += begin->second;
>        featureSet += "\n";
>        ++begin;
>    }
>}
>
>Where featureSet is a std::string.
>
>And this is the output of the compiler.
>[  6%] Building CXX object CMakeFiles/bibish.dir/src/front/info.cpp.o
>~/Projects/bibish/src/front/info.cpp: In member function ‘std::string 
>Info::getInfo()’:
>~/Projects/bibish/src/front/info.cpp:63:61: error: no match for ‘operator=’ 
>(operand types are ‘std::multimap<sword::SWBuf, sword::SWBuf, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::iterator’ {aka ‘std::_Rb_tree<sword::SWBuf, std::pair<const 
>sword::SWBuf, sword::SWBuf>, std::_Select1st<std::pair<const sword::SWBuf, 
>sword::SWBuf> >, std::less<sword::SWBuf>, std::allocator<std::pair<const 
>sword::SWBuf, sword::SWBuf> > >::iterator’} and ‘std::multimap<sword::SWBuf, 
>sword::SWBuf, std::less<sword::SWBuf>, std::allocator<std::pair<const 
>sword::SWBuf, sword::SWBuf> > >::const_iterator’ {aka 
>‘std::_Rb_tree<sword::SWBuf, std::pair<const sword::SWBuf, sword::SWBuf>, 
>std::_Select1st<std::pair<const sword::SWBuf, sword::SWBuf> >, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::const_iterator’})
>   63 |         begin = this->mod->getConfig().lower_bound("Feature");
>      |                                                             ^
>In file included from /usr/include/c++/13/map:62,
>                 from /usr/include/sword/swmgr.h:60,
>                 from ~/Projects/bibish/src/front/info.cpp:25:
>/usr/include/c++/13/bits/stl_tree.h:256:12: note: candidate: 
>‘std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> >& 
>std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> 
>>::operator=(const std::_Rb_tree_iterator<std::pair<const sword::SWBuf, 
>sword::SWBuf> >&)’
>  256 |     struct _Rb_tree_iterator
>      |            ^~~~~~~~~~~~~~~~~
>/usr/include/c++/13/bits/stl_tree.h:256:12: note:   no known conversion for 
>argument 1 from ‘std::multimap<sword::SWBuf, sword::SWBuf, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::const_iterator’ {aka ‘std::_Rb_tree<sword::SWBuf, 
>std::pair<const sword::SWBuf, sword::SWBuf>, std::_Select1st<std::pair<const 
>sword::SWBuf, sword::SWBuf> >, std::less<sword::SWBuf>, 
>std::allocator<std::pair<const sword::SWBuf, sword::SWBuf> > 
>>::const_iterator’} to ‘const std::_Rb_tree_iterator<std::pair<const 
>sword::SWBuf, sword::SWBuf> >&’
>/usr/include/c++/13/bits/stl_tree.h:256:12: note: candidate: 
>‘std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> >& 
>std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> 
>>::operator=(std::_Rb_tree_iterator<std::pair<const sword::SWBuf, 
>sword::SWBuf> >&&)’
>/usr/include/c++/13/bits/stl_tree.h:256:12: note:   no known conversion for 
>argument 1 from ‘std::multimap<sword::SWBuf, sword::SWBuf, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::const_iterator’ {aka ‘std::_Rb_tree<sword::SWBuf, 
>std::pair<const sword::SWBuf, sword::SWBuf>, std::_Select1st<std::pair<const 
>sword::SWBuf, sword::SWBuf> >, std::less<sword::SWBuf>, 
>std::allocator<std::pair<const sword::SWBuf, sword::SWBuf> > 
>>::const_iterator’} to ‘std::_Rb_tree_iterator<std::pair<const sword::SWBuf, 
>sword::SWBuf> >&&’
>~/Projects/bibish/src/front/info.cpp:64:59: error: no match for ‘operator=’ 
>(operand types are ‘std::multimap<sword::SWBuf, sword::SWBuf, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::iterator’ {aka ‘std::_Rb_tree<sword::SWBuf, std::pair<const 
>sword::SWBuf, sword::SWBuf>, std::_Select1st<std::pair<const sword::SWBuf, 
>sword::SWBuf> >, std::less<sword::SWBuf>, std::allocator<std::pair<const 
>sword::SWBuf, sword::SWBuf> > >::iterator’} and ‘std::multimap<sword::SWBuf, 
>sword::SWBuf, std::less<sword::SWBuf>, std::allocator<std::pair<const 
>sword::SWBuf, sword::SWBuf> > >::const_iterator’ {aka 
>‘std::_Rb_tree<sword::SWBuf, std::pair<const sword::SWBuf, sword::SWBuf>, 
>std::_Select1st<std::pair<const sword::SWBuf, sword::SWBuf> >, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::const_iterator’})
>   64 |         end = this->mod->getConfig().upper_bound("Feature");
>      |                                                           ^
>/usr/include/c++/13/bits/stl_tree.h:256:12: note: candidate: 
>‘std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> >& 
>std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> 
>>::operator=(const std::_Rb_tree_iterator<std::pair<const sword::SWBuf, 
>sword::SWBuf> >&)’
>  256 |     struct _Rb_tree_iterator
>      |            ^~~~~~~~~~~~~~~~~
>/usr/include/c++/13/bits/stl_tree.h:256:12: note:   no known conversion for 
>argument 1 from ‘std::multimap<sword::SWBuf, sword::SWBuf, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::const_iterator’ {aka ‘std::_Rb_tree<sword::SWBuf, 
>std::pair<const sword::SWBuf, sword::SWBuf>, std::_Select1st<std::pair<const 
>sword::SWBuf, sword::SWBuf> >, std::less<sword::SWBuf>, 
>std::allocator<std::pair<const sword::SWBuf, sword::SWBuf> > 
>>::const_iterator’} to ‘const std::_Rb_tree_iterator<std::pair<const 
>sword::SWBuf, sword::SWBuf> >&’
>/usr/include/c++/13/bits/stl_tree.h:256:12: note: candidate: 
>‘std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> >& 
>std::_Rb_tree_iterator<std::pair<const sword::SWBuf, sword::SWBuf> 
>>::operator=(std::_Rb_tree_iterator<std::pair<const sword::SWBuf, 
>sword::SWBuf> >&&)’
>/usr/include/c++/13/bits/stl_tree.h:256:12: note:   no known conversion for 
>argument 1 from ‘std::multimap<sword::SWBuf, sword::SWBuf, 
>std::less<sword::SWBuf>, std::allocator<std::pair<const sword::SWBuf, 
>sword::SWBuf> > >::const_iterator’ {aka ‘std::_Rb_tree<sword::SWBuf, 
>std::pair<const sword::SWBuf, sword::SWBuf>, std::_Select1st<std::pair<const 
>sword::SWBuf, sword::SWBuf> >, std::less<sword::SWBuf>, 
>std::allocator<std::pair<const sword::SWBuf, sword::SWBuf> > 
>>::const_iterator’} to ‘std::_Rb_tree_iterator<std::pair<const sword::SWBuf, 
>sword::SWBuf> >&&’
>make[2]: *** [CMakeFiles/bibish.dir/build.make:258: CMakeFiles/bibish.dir/src/
>front/info.cpp.o] Error 1
>make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/bibish.dir/all] Error 2
>make: *** [Makefile:136: all] Error 2
>
>
>
>
>_______________________________________________
>sword-devel mailing list: [email protected]
>http://crosswire.org/mailman/listinfo/sword-devel
>Instructions to unsubscribe/change your settings at above page

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

_______________________________________________
sword-devel mailing list: [email protected]
http://crosswire.org/mailman/listinfo/sword-devel
Instructions to unsubscribe/change your settings at above page
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.