Scm_ForeignPointerClass  108 src/class.c    SCM_DEFINE_BUILTIN_CLASS_SIMPLE(Scm_ForeignPointerClass, NULL);
Scm_ForeignPointerClass  588 src/gauche.h   SCM_CLASS_DECL(Scm_ForeignPointerClass);
Scm_ForeignPointerClass  601 src/gauche.h   #define SCM_CLASS_FOREIGN_POINTER  (&Scm_ForeignPointerClass)