SCM_FOREIGN_POINTER_MAP_NULL   52 examples/mqueue-cpp/mqueue_glue.cpp                                     SCM_FOREIGN_POINTER_KEEP_IDENTITY|SCM_FOREIGN_POINTER_MAP_NULL);
SCM_FOREIGN_POINTER_MAP_NULL 2624 src/class.c        if (ptr == NULL && (data->flags & SCM_FOREIGN_POINTER_MAP_NULL)) {
SCM_FOREIGN_POINTER_MAP_NULL  705 src/gauche.h       SCM_FOREIGN_POINTER_MAP_NULL = (1L<<1)