R: C++ Optimization flag when using the inline package -

R: C++ Optimization flag when using the inline package -

in r when using cxxfunction inline package, how 1 alter optimization flag cpp compiler?

by default, on machine, compiles -g -o2. utilize -o3 optimization gain speed. utilize rcpp plugin if makes difference.

i have tried creating own plugin, , have tried set different arguments of cxxfunction nil worked.

i guess 1 alternative compile using r cmd shlib instead of using cxxfunction. rcpp recommends utilize of inline because of test cases using it.

thanks help, allow me know if need clarification

there couple of options:

the best solution modify for usage r create e.g. file ~/.r/makevars , set cflags, cxxflags, ... there. impact utilize r cmd install ..., r cmd shlib ... etc pp , cxxfunction() inline uses it, works here too.

specific inline , rcpp: modify plugin, that's why plugin system. see rcpp:::rcpp.plugin.maker().

switch cxxfunction() cfunction(), hence not utilize plugin , set arguments manually.

needless say, alternative 1 , utilize myself.

edit: 4th (and rough !!) method used utilize in past edit $r_home/makeconf and/or makeconf.site.

c++ r inline rcpp