ref: efe5c58c017f8a4b85f8915e4ae8d55f04f2ea77
dir: /sys/src/libmp/port/mpfield.c/
#include "os.h"
#include <mp.h>
#include "dat.h"
mpint*
mpfield(mpint *N)
{
Mfield *f;
if(N == nil || N->flags & (MPfield|MPstatic))
return N;
if((f = cnfield(N)) != nil)
goto Exchange;
if((f = gmfield(N)) != nil)
goto Exchange;
return N;
Exchange:
setmalloctag(f, getcallerpc(&N));
mpfree(N);
return f;
}