Solve CRAN issues from Rcpp with UBSAN

[david-cortes]

This PR should fix the UBSAN issues reported by CRAN:

``` > test_check("rsparse") /data/gannet/ripley/R/test-dev/Rcpp/include/Rcpp/vector/traits.h:46:46: runtime error: reference binding to misaligned address 0x000000000001 for type 'type', which requires 4 byte alignment 0x000000000001: note: pointer points here #0 0x7f9168fd9f25 in Rcpp::traits::r_vector_cache<13, Rcpp::PreserveStorage>::ref(long) /data/gannet/ripley/R/test-dev/Rcpp/include/Rcpp/vector/traits.h:46 #1 0x7f9168fd9f25 in Rcpp::Vector<13, Rcpp::PreserveStorage>::operator[](long) /data/gannet/ripley/R/test-dev/Rcpp/include/Rcpp/vector/Vector.h:340 #2 0x7f9168fd9f25 in extract_float_vector(Rcpp::S4_Impl) /data/gannet/ripley/R/packages/tests-gcc-SAN/rsparse/src/utils.cpp:124 #3 0x7f916907dc44 in als_implicit_float(Rcpp::S4_Impl const&, Rcpp::S4_Impl&, Rcpp::S4_Impl&, Rcpp::S4_Impl&, double, int, unsigned int, unsigned int, bool, bool, double, Rcpp::S4_Impl&, bool) /data/gannet/ripley/R/packages/tests-gcc-SAN/rsparse/src/wrmf_implicit.cpp:27 #4 0x7f9168ec9a08 in _rsparse_als_implicit_float /data/gannet/ripley/R/packages/tests-gcc-SAN/rsparse/src/RcppExports.cpp:413 #5 0x58bccb in R_doDotCall /data/gannet/ripley/R/svn/R-devel/src/main/dotcode.c:813 #6 0x653b17 in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8690 #7 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523 #8 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167 #9 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398 #10 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311 #11 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333 #12 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285 #13 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009 #14 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #15 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #16 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009 #17 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #18 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398 #19 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311 #20 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333 #21 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285 #22 0x69d4b7 in do_set /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3581 #23 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #24 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009 #25 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #26 0x6a5ecc in do_for /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2891 #27 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #28 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009 #29 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #30 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398 #31 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311 #32 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333 #33 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285 #34 0x69d4b7 in do_set /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3581 #35 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #36 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009 #37 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #38 0x6a5ecc in do_for /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2891 #39 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #40 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009 #41 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237 #42 0x6a0fe2 in do_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3955 #43 0x64de4f in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8140 #44 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523 #45 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167 #46 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398 #47 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311 #48 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333 #49 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285 #50 0x6a1e37 in do_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3973 #51 0x64de4f in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8140 #52 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523 #53 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167 #54 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398 #55 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311 #56 0x69e493 in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333 #57 0x69e493 in R_forceAndCall /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2465 #58 0x451404 in do_lapply /data/gannet/ripley/R/svn/R-devel/src/main/apply.c:75 #59 0x7420d7 in do_internal /data/gannet/ripley/R/svn/R-devel/src/main/names.c:1409 #60 0x63f4f9 in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8160 #61 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523 #62 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167 #63 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398 #64 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311 #65 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333 #66 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285 #67 0x714e9e in Rf_ReplIteration /data/gannet/ripley/R/svn/R-devel/src/main/main.c:263 #68 0x715511 in R_ReplConsole /data/gannet/ripley/R/svn/R-devel/src/main/main.c:315 #69 0x715654 in run_Rmainloop /data/gannet/ripley/R/svn/R-devel/src/main/main.c:1217 #70 0x7156a2 in Rf_mainloop /data/gannet/ripley/R/svn/R-devel/src/main/main.c:1224 #71 0x41a7d8 in main /data/gannet/ripley/R/svn/R-devel/src/main/Rmain.c:29 #72 0x7f917ec2950f in __libc_start_call_main (/lib64/libc.so.6+0x2950f) (BuildId: 8257ee907646e9b057197533d1e4ac8ede7a9c5c) #73 0x7f917ec295c8 in __libc_start_main_alias_2 (/lib64/libc.so.6+0x295c8) (BuildId: 8257ee907646e9b057197533d1e4ac8ede7a9c5c) #74 0x41d034 in _start (/data/gannet/ripley/R/gcc-SAN/bin/exec/R+0x41d034) (BuildId: 56ff6b70c40a24eccf16f0ce952f5ebd85884520)

/data/gannet/ripley/R/test-dev/Rcpp/include/Rcpp/vector/Vector.h:340:62: runtime error: reference binding to misaligned address 0x000000000001 for type 'type', which requires 4 byte alignment
0x000000000001: note: pointer points here

#0 0x7f9168fd9ee9 in Rcpp::Vector<13, Rcpp::PreserveStorage>::operator /data/gannet/ripley/R/test-dev/Rcpp/include/Rcpp/vector/Vector.h:340
#1 0x7f9168fd9ee9 in extract_float_vector(Rcpp::S4_ImplRcpp::PreserveStorage) /data/gannet/ripley/R/packages/tests-gcc-SAN/rsparse/src/utils.cpp:124
#2 0x7f916907dc44 in als_implicit_float(Rcpp::S4_ImplRcpp::PreserveStorage const&, Rcpp::S4_ImplRcpp::PreserveStorage&, Rcpp::S4_ImplRcpp::PreserveStorage&, Rcpp::S4_ImplRcpp::PreserveStorage&, double, int, unsigned int, unsigned int, bool, bool, double, Rcpp::S4_ImplRcpp::PreserveStorage&, bool) /data/gannet/ripley/R/packages/tests-gcc-SAN/rsparse/src/wrmf_implicit.cpp:27
#3 0x7f9168ec9a08 in _rsparse_als_implicit_float /data/gannet/ripley/R/packages/tests-gcc-SAN/rsparse/src/RcppExports.cpp:413
#4 0x58bccb in R_doDotCall /data/gannet/ripley/R/svn/R-devel/src/main/dotcode.c:813
#5 0x653b17 in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8690
#6 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523
#7 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167
#8 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398
#9 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311
#10 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333
#11 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285
#12 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009
#13 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#14 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#15 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009
#16 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#17 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398
#18 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311
#19 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333
#20 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285
#21 0x69d4b7 in do_set /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3581
#22 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#23 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009
#24 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#25 0x6a5ecc in do_for /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2891
#26 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#27 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009
#28 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#29 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398
#30 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311
#31 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333
#32 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285
#33 0x69d4b7 in do_set /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3581
#34 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#35 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009
#36 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#37 0x6a5ecc in do_for /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2891
#38 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#39 0x69988b in do_begin /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3009
#40 0x68fad8 in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1237
#41 0x6a0fe2 in do_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3955
#42 0x64de4f in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8140
#43 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523
#44 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167
#45 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398
#46 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311
#47 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333
#48 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285
#49 0x6a1e37 in do_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:3973
#50 0x64de4f in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8140
#51 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523
#52 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167
#53 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398
#54 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311
#55 0x69e493 in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333
#56 0x69e493 in R_forceAndCall /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2465
#57 0x451404 in do_lapply /data/gannet/ripley/R/svn/R-devel/src/main/apply.c:75
#58 0x7420d7 in do_internal /data/gannet/ripley/R/svn/R-devel/src/main/names.c:1409
#59 0x63f4f9 in bcEval_loop /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:8160
#60 0x68e822 in bcEval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:7523
#61 0x68f09a in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1167
#62 0x694dfe in R_execClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2398
#63 0x697268 in applyClosure_core /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2311
#64 0x68f6ad in Rf_applyClosure /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:2333
#65 0x68f6ad in Rf_eval /data/gannet/ripley/R/svn/R-devel/src/main/eval.c:1285
#66 0x714e9e in Rf_ReplIteration /data/gannet/ripley/R/svn/R-devel/src/main/main.c:263
#67 0x715511 in R_ReplConsole /data/gannet/ripley/R/svn/R-devel/src/main/main.c:315
#68 0x715654 in run_Rmainloop /data/gannet/ripley/R/svn/R-devel/src/main/main.c:1217
#69 0x7156a2 in Rf_mainloop /data/gannet/ripley/R/svn/R-devel/src/main/main.c:1224
#70 0x41a7d8 in main /data/gannet/ripley/R/svn/R-devel/src/main/Rmain.c:29
#71 0x7f917ec2950f in __libc_start_call_main (/lib64/libc.so.6+0x2950f) (BuildId: 8257ee907646e9b057197533d1e4ac8ede7a9c5c)
#72 0x7f917ec295c8 in __libc_start_main_alias_2 (/lib64/libc.so.6+0x295c8) (BuildId: 8257ee907646e9b057197533d1e4ac8ede7a9c5c)
#73 0x41d034 in _start (/data/gannet/ripley/R/gcc-SAN/bin/exec/R+0x41d034) (BuildId: 56ff6b70c40a24eccf16f0ce952f5ebd85884520)

</details>

[dselivanov]

Thanks a lot @david-cortes ! I've received email from CRAN to fix this, but had zero spare time to dig into it. Appreciate your continuous contributions !