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Groups > comp.lang.c++ > #3445
| From | "Alf P. Steinbach /Usenet" <alf.p.steinbach+usenet@gmail.com> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: templated operator()<< |
| Date | 2011-04-12 05:25 +0200 |
| Organization | A noiseless patient Spider |
| Message-ID | <io0gn3$3ie$1@dont-email.me> (permalink) |
| References | <io03f9$qsv$1@reader1.panix.com> <io06co$fgm$1@dont-email.me> <io0bl5$9hr$1@reader1.panix.com> <io0bpn$dph$2@dont-email.me> <io0e7q$qsv$3@reader1.panix.com> |
* Ruben Safir, on 12.04.2011 04:43: > On Tue, 12 Apr 2011 04:01:25 +0200, Alf P. Steinbach /Usenet wrote: > >> * Ruben Safir, on 12.04.2011 03:59: >>> On Tue, 12 Apr 2011 02:29:10 +0200, Alf P. Steinbach /Usenet wrote: >>> >>>> * Ruben Safir, on 12.04.2011 01:39: >>>>> as I understand things, the operator<<() needs to be external as to >>>>> the class and then declared as a friend of the class. I'm not sure >>>>> if I understand why that is the case. >>>> >>>> >>> >>> what?? operator<<() can be a normal class member? >> >> Yes. >> >> >> Cheers& hth., >> >> - Alf > http://en.wikibooks.org/wiki/C++_Programming/Operators/Operator_Overloading#Operators_as_member_functions > > > Of special mention are the shift operators,<< and>>. These have been overloaded in the standard library for interaction with streams. When overloading these operators to work with streams the rules below should be followed: > > 1. overload<< and>> as friends (so that it can access the private variables with the stream be passed in by references > 2. (input/output modifies the stream, and copying is not allowed) > 3. the operator should return a reference to the stream it receives (to allow chaining, cout<< 3<< 4<< 5) Your question seems to be missing. Cheers & hth., - Alf -- blog at <url: http://alfps.wordpress.com>
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templated operator()<< Ruben Safir <ruben@mrbrklyn.com> - 2011-04-11 23:39 +0000
Re: templated operator()<< LR <lruss@superlink.net> - 2011-04-11 20:07 -0400
Re: templated operator()<< "Alf P. Steinbach /Usenet" <alf.p.steinbach+usenet@gmail.com> - 2011-04-12 02:29 +0200
Re: templated operator()<< Ruben Safir <ruben@mrbrklyn.com> - 2011-04-12 01:59 +0000
Re: templated operator()<< "Alf P. Steinbach /Usenet" <alf.p.steinbach+usenet@gmail.com> - 2011-04-12 04:01 +0200
Re: templated operator()<< Ruben Safir <ruben@mrbrklyn.com> - 2011-04-12 02:37 +0000
Re: templated operator()<< Ruben Safir <ruben@mrbrklyn.com> - 2011-04-12 02:43 +0000
Re: templated operator()<< "Alf P. Steinbach /Usenet" <alf.p.steinbach+usenet@gmail.com> - 2011-04-12 05:25 +0200
Re: templated operator()<< Michael Doubez <michael.doubez@free.fr> - 2011-04-12 00:17 -0700
Re: templated operator()<< Kai-Uwe Bux <jkherciueh@gmx.net> - 2011-04-12 08:23 +0200
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