Skip to content

[R-devel] what are labels in struct sxpinfo_struct from Rinternals.h mean?

2 messages · PO SU, Brian Ripley

Original
PO SU
# 
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: desolator88 at 163.com
Majored in Statistics from SJTU
Brian Ripley
# 
Once again[*], you really should study the posting guide.  The 
documentation is the 'R Internals manual', and it does cover this.

fortunes::fortune(14) applies.

[*] After two postings on R-help which ignored it, one reply to which 
pointed out this manual.
On 22/08/2014 07:32, PO SU wrote: