[Rcpp-devel] deprecated log_max warning

Dirk Eddelbuettel edd at debian.org
Thu Apr 21 22:26:00 CEST 2016


On 21 April 2016 at 15:58, Yixuan Qiu wrote:
| It looks like a "bug" of Armadillo. In fn_trunc_exp.hpp, trunc_exp()
| calles Math<eT>::log_max() that has already been labeled deprecated.

Good catch. I concur.  CC'ing Conrad.

Dirk
 
 
| Best,
| Yixuan
| 
| 2016-04-21 15:51 GMT-04:00 Dirk Eddelbuettel <edd at debian.org>:
| >
| > Hi Yue,
| >
| > On 21 April 2016 at 15:44, Yue Li wrote:
| > | Dear List,
| > |
| > | Just a super naive (dumb) question: after upgrading to RcppArmadillo_0.6.700.3.0 Rcpp_0.12.4, I receive compilation warning ''log_max' has been explicitly marked deprecated here” on every line of my code that uses ‘trunc_exp’ or ‘trunc_log’.
| > |
| > | I wonder how to fix this. The code to reproduce the warning and the log are pasted below. I got the same warning on Linux server as well.
| >
| > Many of us use Rcpp and RcppArmadillo daily but I have not seen this.  I
| > gather that you use OS X -- so I presume this is clang?  What version?
| >
| > Do you set particular compiler flags?  I often use --pendantic.
| >
| > Did you try adding -Wno-deprecated-declarations as suggested?
| >
| > Did you chase down which header files this is from?
| >
| > Lastly, did you poke into the Armadillo header?  From the top of my head I
| > seem to recall that there is a define to suppress error mesages too.
| >
| > Dirk
| >
| > |
| > | Thanks a lot in advance,
| > | Yue
| > |
| > | Code:
| > |
| > | #include <RcppArmadillo.h>
| > |
| > | // [[Rcpp::depends("RcppArmadillo")]]
| > |
| > | // [[Rcpp::export]]
| > | double trunc_exp_Rcpp(double x) {
| > |
| > |   return arma::trunc_exp(x);
| > | }
| > |
| > | Outputs log:
| > |
| > | > Rcpp::sourceCpp('tmp.cpp')
| > | In file included from tmp.cpp:1:
| > | In file included from /Library/Frameworks/R.framework/Versions/3.2/Resources/library/RcppArmadillo/include/RcppArmadillo.h:31:
| > | In file included from /Library/Frameworks/R.framework/Versions/3.2/Resources/library/RcppArmadillo/include/RcppArmadilloForward.h:46:
| > | In file included from /Library/Frameworks/R.framework/Versions/3.2/Resources/library/RcppArmadillo/include/armadillo:458:
| > | /Library/Frameworks/R.framework/Versions/3.2/Resources/library/RcppArmadillo/include/armadillo_bits/fn_trunc_exp.hpp:23:60: warning: 'log_max' is deprecated [-Wdeprecated-declarations]
| > |   if(std::numeric_limits<eT>::is_iec559 && (x >= Math<eT>::log_max() ))
| > |                                                            ^
| > | tmp.cpp:8:16: note: in instantiation of function template specialization 'arma::trunc_exp<double>' requested here
| > |   return arma::trunc_exp(x);
| > |                ^
| > | /Library/Frameworks/R.framework/Versions/3.2/Resources/library/RcppArmadillo/include/armadillo_bits/constants_old.hpp:50:29: note: 'log_max' has been explicitly marked deprecated here
| > |   arma_deprecated static eT log_max()   { static const eT out = std::log(std::numeric_limits<eT>::max()); return out; }  // use datum::log_max instead
| > |                             ^
| > | 1 warning generated.
| > | > sessionInfo()
| > | R version 3.2.4 (2016-03-10)
| > | Platform: x86_64-apple-darwin13.4.0 (64-bit)
| > | Running under: OS X 10.11.4 (El Capitan)
| > |
| > | locale:
| > | [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
| > |
| > | attached base packages:
| > | [1] stats     graphics  grDevices utils     datasets  methods   base
| > |
| > | loaded via a namespace (and not attached):
| > | [1] tools_3.2.4               RcppArmadillo_0.6.700.3.0 Rcpp_0.12.4
| > | >
| > | _______________________________________________
| > | Rcpp-devel mailing list
| > | Rcpp-devel at lists.r-forge.r-project.org
| > | https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
| > --
| > http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org
| > _______________________________________________
| > Rcpp-devel mailing list
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| 
| 
| 
| -- 
| Yixuan Qiu <yixuan.qiu at cos.name>
| Department of Statistics,
| Purdue University

-- 
http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org


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