source_scm         44 ext/charconv/convlib.c   ScmObj source_scm;
source_scm         58 ext/charconv/convlib.c   source_scm = SCM_ARGREF(0);
source_scm         59 ext/charconv/convlib.c   if (!SCM_IPORTP(source_scm)) Scm_Error("input port required, but got %S", source_scm);
source_scm         60 ext/charconv/convlib.c   source = SCM_PORT(source_scm);