On 29 March 2012 at 20:59, Romain Francois wrote: | Le 29/03/12 20:18, Dirk Eddelbuettel a écrit : | > | > On 29 March 2012 at 18:51, Patrick Burns wrote: | > | On 29/03/2012 18:33, Dirk Eddelbuettel wrote: | > |> | > |> On 29 March 2012 at 19:12, Romain Francois wrote: | > |> | Le 28/03/12 13:56, Ulrich Bodenhofer a écrit : | > |> |> Hi, | > |> |> | > |> |> My question is the following: is there any way of checking in whether a | > |> |> component of an Rcpp list (or vector) with a given name exists in this | > |> |> list. If I simply try accessing a non-existing component, I get an | > |> |> "index out of bounds" error. Trying to catch a possible exception did | > |> |> not work either. I also browsed the Rcpp package source code, but | > |> |> unfortunately I got lost. Sorry if this has been addressed on this list | > |> |> before. At least I googled in many different ways, but could not find | > |> |> anything. Any ideas? Any help is gratefully appreciated! | > |> |> | > |> |> Thanks and best regards, | > |> |> Ulrich | > |> | | > |> | Hello, | > |> | | > |> | I commited the has_element_called method on the Vector template (vectors | > |> | of all sorts, incl lists). | > |> | > |> +1, but how about just calling it 'contains' rather 'has_element_called' ? | > | | > | I think 'contains' would imply a value | > | in the vector rather than a name. The | > | extra typing might be worth avoiding | > | that confusion. | > | > While that is true, it cannot deflect away from the fact that Hadley and I | > are in a deadly mano-a-mano battle about the extended use, or, in my case, | > strict avoidance, of underscores. That is /extremely serious/ business. | > | > So how about hasElementCalled() then? | > | > Or given that these are 'names' how about | > | > hasElementNamed() | > | > pr maybe | > | > containsName() | | Sure. Whatever makes anyone happy ;-)
Ok, so barring objections, I'll change the code as well as the unit test I added to use 'hasElementNamed()'. Dirk -- R/Finance 2012 Conference on May 11 and 12, 2012 at UIC in Chicago, IL See agenda, registration details and more at http://www.RinFinance.com _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
