search for: r_newhashedenv

Hi, I would like to be able to create new environments from package C code. AFAICT, this isn't allowed since both NewEnvironment and R_NewHashedEnv are declared in Defn.R. If exposing this isn't controvertial, I would submit a patch. However, I'm not sure where the declarations should go (Rdefines.h?) and whether they need to change to Rf_*. + seth

Hi, as Seth Falcon in 2006, I also need to create new environments from package C code. Unfortunately, both NewEnvironment and R_NewHashedEnv are not yet part of the public API, if I understand correctly. Is it planned to add at least one of these functions to the public API in the near future? May I submit a patch? Otherwise I would need to re-implement much of the functionality of R environments in my own code. Many thanks and best...

...1e53627e1f0c220bdc5f752/src/main/envir.c#L3619-L3630 I have a use case where I'm likely to call this function a large number of times to generate many small hashed environments, so I'd like to optimize it as far as possible. I noticed that it takes `int size`, converts that to a SEXP for `R_NewHashedEnv()`, which then simply converts that back to an `int` here: https://github.com/wch/r-source/blob/625ab8d45f86f65561e53627e1f0c220bdc5f752/src/main/envir.c#L378 I wonder if we could cut out that intermediate SEXP (along with its protection) by adjusting `R_NewHashedEnv()` to instead take `int size`....

Dear developers, is it possible to create environments in C code of packages? Simply using SEXP env; PROTECT (env = allocSExp(ENVSXP)); and assigning the enclosing environment with SET_ENCLOS seems to be insufficient. Best wishes, Martin -- Dr. Martin Becker Statistics and Econometrics Saarland University Campus C3 1, Room 206 66123 Saarbruecken Germany

...) +{ + SEXP sexp; + + if (growth_rate < 1.1) + growth_rate = 1.1; + + if (R_Code_Coverage) return; + R_Code_Coverage = 1; + if (R_Cov_freqs_hash != NULL) + R_ReleaseObject(R_Cov_freqs_hash); + + /* put the params nb_lines and growth_rate as hidden vars of the hashed env */ + R_Cov_freqs_hash = R_NewHashedEnv(R_NilValue, ScalarInteger(0)); + PROTECT(sexp = ScalarInteger(nb_lines)); + defineVar(install(".nb_lines"), sexp, R_Cov_freqs_hash); + + PROTECT(sexp = ScalarReal(growth_rate)); + defineVar(install(".growth_rate"), sexp, R_Cov_freqs_hash); + + R_PreserveObject(R_Cov_freqs_hash);...