search for: do_grep

The attached patch provides a modification to the recent fix/improvement to do_grep already included in the most recent development version. The original fix added new functionality to the grep function by adding a new parameter, 'invert'. In the source code for the underlying do_grep, the value of the parameter is used to invert the logical match-no match flag vector in...

Hello, I think I've found a bug in the C function do_grep located in src/main/grep.c. It seems to affect both the latest revisions of R-2-13-branch and trunk when compiling R without optimizations and with it's own version of pcre located in src/extra, at least on ubuntu 10.04. According to the pcre_exec API (I presume the later versions), the ovecs...

...ich should be character strings or character vectors are coerced to character if possible. The wording of both would seem to reasonably lead to the conclusion that a factor could be coerced to a character vector by the use of as.character(FACTOR). In tracing through the C code in character.c for do_grep(), which in turn calls coerceVector() in coerce.c, unless I am mis-reading the code (always possible), I don't see an indication that a factor would be coerced to a character vector. Since a factor -> character coercion would seem at face value, the most logical coercion to take place when...

Attached is a suggested patch for src/main/character.c. It does not fix a bug, but rather provides an improvement on the recent extension of do_grep. In essence, instead of four occurences of 'invert ^ LOGICAL(ind)[i]' that accommodate for the option 'invert' added to grep, there is one occurence of 'LOGICAL(ind)[i] ^= invert' that modifies in-place the logical vector of matched/unmatched flags. Having the inversion do...

...oc' grep.o: In function `do_regexpr': /genetics/data/software/R-devel/src/main/grep.c:2832: undefined reference to `pcre_free_study' grep.o: In function `do_gsub': /genetics/data/software/R-devel/src/main/grep.c:2116: undefined reference to `pcre_free_study' grep.o: In function `do_grep': /genetics/data/software/R-devel/src/main/grep.c:1109: undefined reference to `pcre_free_study' grep.o: In function `do_strsplit': /genetics/data/software/R-devel/src/main/grep.c:629: undefined reference to `pcre_free_study' collect2: ld returned 1 exit status make[3]: *** [R.bin]...

Dear R-developers, I would appreciate any insights over compiling R 3.4 with Intel MKL -- I have been successful until R 3.3.3 but now it stops complaining about pcre though it worked without Intel MKL as follows, ./configure LDFLAGS=-L/genetics/data/software/lib CFLAGS=-fPIC -I/genetics/data/software/include --enable-R-shlib I have used, export MKL_NUM_THREADS=15 export

...====================================== RCS file: /home/rcvs/src/R/src/main/names.h,v retrieving revision 1.51 diff -c -r1.51 names.h *** src/main/names.h 2000/01/21 17:54:06 1.51 --- src/main/names.h 2000/01/29 00:23:19 *************** *** 181,188 **** SEXP do_gray(SEXP, SEXP, SEXP, SEXP); SEXP do_grep(SEXP, SEXP, SEXP, SEXP); SEXP do_gsub(SEXP, SEXP, SEXP, SEXP); - SEXP do_hdf5save (SEXP, SEXP, SEXP, SEXP); - SEXP do_hdf5load (SEXP, SEXP, SEXP, SEXP); SEXP do_hsv(SEXP, SEXP, SEXP, SEXP); SEXP do_identify(SEXP, SEXP, SEXP, SEXP); SEXP do_if(SEXP, SEXP, SEXP, SEXP); --- 181,186 ---- Index...

This started as a simple warning-elimination change. I'll get back to that series shortly ;-) It turned into a factorization and constification exercise during which I got a taste of ocaml. Thanks to Rich Jones for help with a few snippets in generator.ml. The overall result is that many previously-manually-maintained bits from daemon/*.c functions are now hoisted into the automatically-