[Rcpp-devel] variadic templates
francoisromain at free.fr
Tue Jan 5 13:49:29 CET 2010
On 01/05/2010 01:17 PM, Dirk Eddelbuettel wrote:
> On 5 January 2010 at 10:15, Romain François wrote:
> | We still need something to generate this line of the Makevars :
> | PKG_CPPFLAGS += -I. -std=c++0x
> | -std=c++0x is only valid from gcc 4.3, so people who want to build the
> | package but do not have access to gcc>= 4.3.O can just replace the line
> | with this :
> | PKG_CPPFLAGS += -I.
> I can do that quite easily in configure; RQuantLib once needed tests to
> ensure that for g++ wasn't still 2.9*, and I also tests for QuantLib
> versions. Just a matter a catching a string from g++ --version and
> comparing. That will set the additional arg. for PKG_CPPFLAGS (actually: we
> should use PKG_CXXFLAGS for that) and define CXX0X as 1 (and maybe we flip
> the tests to #if CXX0X rathter than #ifdef CXX0X)
There is no more CXX0X in the code. There is this instead:
#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 +
#if GCC_VERSION >= 40300
#if GCC_VERSION >= 40400
The Makevars is the only thing left to change. You seem to know how to
> | I've also added Rcpp::capabilities to query the capabilities of the
> | package.
> | For example on my system I have :
> | $ Rscript -e "Rcpp:::capabilities()"
> | variadic templates initializer lists
> | TRUE TRUE
> Nice one!
> | I'll talk about what I want to do with initializer lists later.
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