Dear Rdevelers,
The following struct is in the Rinternals.h. I want to know the meanings
of labels or names like "gp,mark,obj,named,trace....." . TKS!
struct sxpinfo_struct {
SEXPTYPE type : 5;/* ==> (FUNSXP == 99) %% 2^5 == 3 == CLOSXP
* -> warning: `type' is narrower than values
* of its type
* when SEXPTYPE was an enum */
unsigned int obj : 1;
unsigned int named : 2;
unsigned int gp : 16;
unsigned int mark : 1;
unsigned int debug : 1;
unsigned int trace : 1; /* functions and memory tracing */
unsigned int spare : 1; /* currently unused */
unsigned int gcgen : 1; /* old generation number */
unsigned int gccls : 3; /* node class */
}; /* Tot: 32 */
--
PO SU
mail: desolato...@163.com
Majored in Statistics from SJTU
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