Include file inst/include/Rcpp/platform/compiler.h contains a number of ancient tests ("is gcc newer than 4.5 ?") that we should be able to simplify. One approach may be to open a branch and to chip away carefully, building on last year's variadic templates cleanup. I suspect we can get rid of most if not even all these 'else' branches as current Rcpp versions are very unlikely to encounter a compiler than does not have a minimal C++11 fallback.
For example, RCPP_USING_CXX0X_OR_LATER is defined there, but used only in one file (inst/include/Rcpp/sugar/functions/sapply.h) where it provides a fallback for typedef typename via local pre-C++11 implementation. That else case can likely be removed. By going carefully we may be able to get some simplifications in.
Thoughts?
Include file inst/include/Rcpp/platform/compiler.h contains a number of ancient tests ("is gcc newer than 4.5 ?") that we should be able to simplify. One approach may be to open a branch and to chip away carefully, building on last year's variadic templates cleanup. I suspect we can get rid of most if not even all these 'else' branches as current Rcpp versions are very unlikely to encounter a compiler than does not have a minimal C++11 fallback.
For example,
RCPP_USING_CXX0X_OR_LATERis defined there, but used only in one file (inst/include/Rcpp/sugar/functions/sapply.h) where it provides a fallback fortypedef typenamevia local pre-C++11 implementation. That else case can likely be removed. By going carefully we may be able to get some simplifications in.Thoughts?