search for: 55aa72be1c70

Hello, I would like for my C function to be able to manipulate some values stored in an R data frame. To achieve this, a need the (real) memory address where the R data frame stores its data (hopefully in a contiguous way). Then, from R, I call the C function and passing this memory address as a parameter. The question: how can we get the memory address of the R data frame? Thank you! L.

...g0c1 [OBJ,MARK,NAM(7),TR,ATT] (len=1, tl=0) @55aa7440d420 13 INTSXP g0c0 [MARK,NAM(7)] 1 : 10 (compact) ATTRIB: @55aa743f9ea0 02 LISTSXP g0c0 [MARK] TAG: @55aa72ac98a0 01 SYMSXP g0c0 [MARK,NAM(7),LCK,gp=0x6000] "names" (has value) @55aa743e0fb0 16 STRSXP g0c1 [MARK,NAM(7)] (len=1, tl=0) @55aa72be1c70 09 CHARSXP g0c1 [MARK,gp=0x61] [ASCII] [cached] "z" TAG: @55aa72ac9d70 01 SYMSXP g0c0 [MARK,NAM(7),LCK,gp=0x4000] "class" (has value) @55aa73ca59b8 16 STRSXP g0c1 [MARK,NAM(7)] (len=1, tl=0) @55aa72b562b8 09 CHARSXP g0c2 [MARK,gp=0x61,ATT] [ASCII] [cached] "data.frame"...