Le 06/04/10 15:32, Dirk Eddelbuettel a écrit : > > On 6 April 2010 at 14:27, Romain Francois wrote: > |> Perhaps I am not answering the question that you asked - that sort of > |> thing happens when answering email while still on the first cup of > |> coffee. More helpful might be the comments in the limits include file > |> for libstdc++ on Debian/Ubuntu > |> > |> // The numeric_limits<> traits document implementation-defined aspects > |> // of fundamental arithmetic data types (integers and floating points). > |> // From Standard C++ point of view, there are 13 such types: > |> // * integers > |> // bool (1) > |> // char, signed char, unsigned char (3) > |> // short, unsigned short (2) > |> // int, unsigned (2) > |> // long, unsigned long (2) > |> // > |> // * floating points > |> // float (1) > |> // double (1) > |> // long double (1) > |> // > |> // GNU C++ understands (where supported by the host C-library) > |> // * integer > |> // long long, unsigned long long (2) > |> // > |> // which brings us to 15 fundamental arithmetic data types in GNU C++. > |> > |> So it looks like short is part of standard C++ but not long long. > | > | Even better, thanks again. > > Not to beat a dead horse (and yours, at that) but the long long and unsigned > long long are hence not portable but GNU g++ dependent.
I have not touched long long and unsigned long long so we are still in standard c++. If I do them, they will be hidden in #ifdef __GNUC__ > | BTW, I am also a recurrent victim of the "before the first cup of > | coffee" pattern. > > I am incoherent and incomprehensible most of the time irrespective of the > amount of coffee. > > Dirk > -- Romain Francois Professional R Enthusiast +33(0) 6 28 91 30 30 http://romainfrancois.blog.free.fr |- http://bit.ly/9aKDM9 : embed images in Rd documents |- http://tr.im/OIXN : raster images and RImageJ |- http://tr.im/OcQe : Rcpp 0.7.7 _______________________________________________ Rcpp-devel mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
