filename_scm 1101 src/syslib.c ScmObj filename_scm; filename_scm 1104 src/syslib.c filename_scm = SCM_ARGREF(0); filename_scm 1105 src/syslib.c if (!SCM_STRINGP(filename_scm)) Scm_Error("const C string required, but got %S", filename_scm); filename_scm 1106 src/syslib.c filename = SCM_STRING_CONST_CSTRING(filename_scm);