hi. i normally build under macosx, but trying to track down a memory
problem have started using (the wonderful) valgrind under linux. the
linux machine has a newer g++ (4.7.2 versus 4.2.1). the compiler on the
linux machine was giving me warnings like:
----
warning: deleting object of polymorphic class type ‘Rcpp::CppProperty<Num>’
which has non-virtual destructor might cause undefined behaviour
----
(where "<Num>" varies between error messages).
i started whittling down my program to a minimal case, but when i got
near the null set, took a different approach. i used the normal tools
to build a skeleton:
----
/sw/Library/Frameworks/R.framework/Versions/2.15/Resources/Rscript -e \
'Rcpp::Rcpp.package.skeleton(name="play", path="packages", \
attributes=TRUE, module=TRUE)'
/sw/Library/Frameworks/R.framework/Versions/2.15/Resources/Rscript -e \
'Rcpp::compileAttributes("packages/play")'
R CMD build packages/play/
----
i then copied this to the linux machine, tried installing it, and got
the same (sorts of) error messages (see below).
note that my ~/.R/Makevars contains:
----
## http://stackoverflow.com/a/11363085/1527747 (thanks, Dirk!)
CXXFLAGS=-g -O0 -Wall
----
since this is C++ at a level beyond my pay grade, i'm wondering what to
make of it. any thoughts? (in the case of my code, there is *some*
correlation between the sites producing these warnings and the sites
where valgrind finds memory irregularities, but that may be
coincidental.)
cheers, Greg
----
bash whatever: {568} R CMD INSTALL --dsym play_1.0.tar.gz
* installing to library ‘/home/minshall/R/x86_64-pc-linux-gnu-library/2.15’
* installing *source* package ‘play’ ...
** libs
g++ -I/usr/share/R/include -DNDEBUG
-I"/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include" -fpic -g
-O0 -Wall -c Num.cpp -o Num.o
In file included from
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp.h:48:0,
from Num.cpp:22:
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/XPtr.h: In
instantiation of ‘void Rcpp::standard_delete_finalizer(T*) [with T =
Rcpp::CppProperty<Num>]’:
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/Module.h:313:13:
required from ‘Rcpp::S4_field<Class>::S4_field(Rcpp::CppProperty<Class>*,
SEXP) [with Class = Num; SEXP = SEXPREC*]’
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/module/class.h:392:17:
required from ‘Rcpp::List Rcpp::class_<Class>::fields(SEXP) [with Class =
Num; Rcpp::List = Rcpp::Vector<19>; SEXP = SEXPREC*]’
Num.cpp:51:1: required from here
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/XPtr.h:39:5:
warning: deleting object of polymorphic class type ‘Rcpp::CppProperty<Num>’
which has non-virtual destructor might cause undefined behaviour
[-Wdelete-non-virtual-dtor]
g++ -I/usr/share/R/include -DNDEBUG
-I"/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include" -fpic -g
-O0 -Wall -c RcppExports.cpp -o RcppExports.o
g++ -I/usr/share/R/include -DNDEBUG
-I"/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include" -fpic -g
-O0 -Wall -c rcpp_hello_world.cpp -o rcpp_hello_world.o
g++ -I/usr/share/R/include -DNDEBUG
-I"/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include" -fpic -g
-O0 -Wall -c rcpp_module.cpp -o rcpp_module.o
In file included from
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp.h:48:0,
from rcpp_module.cpp:22:
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/XPtr.h: In
instantiation of ‘void Rcpp::standard_delete_finalizer(T*) [with T =
Rcpp::CppProperty<World>]’:
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/Module.h:313:13:
required from ‘Rcpp::S4_field<Class>::S4_field(Rcpp::CppProperty<Class>*,
SEXP) [with Class = World; SEXP = SEXPREC*]’
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/module/class.h:392:17:
required from ‘Rcpp::List Rcpp::class_<Class>::fields(SEXP) [with Class =
World; Rcpp::List = Rcpp::Vector<19>; SEXP = SEXPREC*]’
rcpp_module.cpp:83:1: required from here
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/XPtr.h:39:5:
warning: deleting object of polymorphic class type ‘Rcpp::CppProperty<World>’
which has non-virtual destructor might cause undefined behaviour
[-Wdelete-non-virtual-dtor]
g++ -I/usr/share/R/include -DNDEBUG
-I"/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include" -fpic -g
-O0 -Wall -c stdVector.cpp -o stdVector.o
In file included from
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp.h:48:0,
from stdVector.cpp:22:
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/XPtr.h: In
instantiation of ‘void Rcpp::standard_delete_finalizer(T*) [with T =
Rcpp::CppProperty<std::vector<double> >]’:
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/Module.h:313:13:
required from ‘Rcpp::S4_field<Class>::S4_field(Rcpp::CppProperty<Class>*,
SEXP) [with Class = std::vector<double>; SEXP = SEXPREC*]’
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/module/class.h:392:17:
required from ‘Rcpp::List Rcpp::class_<Class>::fields(SEXP) [with Class =
std::vector<double>; Rcpp::List = Rcpp::Vector<19>; SEXP = SEXPREC*]’
stdVector.cpp:90:1: required from here
/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/include/Rcpp/XPtr.h:39:5:
warning: deleting object of polymorphic class type
‘Rcpp::CppProperty<std::vector<double> >’ which has non-virtual destructor
might cause undefined behaviour [-Wdelete-non-virtual-dtor]
g++ -shared -o play.so Num.o RcppExports.o rcpp_hello_world.o rcpp_module.o
stdVector.o -L/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/lib -lRcpp
-Wl,-rpath,/home/minshall/R/x86_64-pc-linux-gnu-library/2.15/Rcpp/lib
-L/usr/lib/R/lib -lR
installing to /home/minshall/R/x86_64-pc-linux-gnu-library/2.15/play/libs
** R
** preparing package for lazy loading
** help
Warning: /tmp/RtmpV5N6bo/R.INSTALLe88448c4569/play/man/play-package.Rd:31: All
text must be in a section
Warning: /tmp/RtmpV5N6bo/R.INSTALLe88448c4569/play/man/play-package.Rd:32: All
text must be in a section
*** installing help indices
** building package indices
** testing if installed package can be loaded
* DONE (play)
bash whatever: {569} g++ --version
g++ (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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