Cleanups and generalizations in Bezier::minmax.

[lilypond.git] / lily / identifier-smob.cc

diff --git a/lily/identifier-smob.cc b/lily/identifier-smob.cc
index bd61f570ece16f4654688d7aab91196c14e24ec0..a9b198f6bc4cb4e83e08868b983a8ef3b8410179 100644 (file)
--- a/lily/identifier-smob.cc
+++ b/lily/identifier-smob.cc
@@ -1,22 +1,28 @@
-/*   
-identifier-smob.cc -- implement glue to pass Scheme expressions off as
-identifiers.
+/*
+  This file is part of LilyPond, the GNU music typesetter.
+
+  Copyright (C) 2002--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-source file of the GNU LilyPond music typesetter
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
 
-(c) 2002--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
 
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
+
 #include "identifier-smob.hh"
-/*
-  C&P from example/box.c
- */
 
 scm_t_bits package_tag;
 
-/* Print a textual represenation of the smob to a given port.  */
 static int
-print_box (SCM b, SCM port, scm_print_state *pstate)
+print_box (SCM b, SCM port, scm_print_state *)
 {
   SCM value = SCM_CELL_OBJECT_1 (b);
 
@@ -28,26 +34,22 @@ print_box (SCM b, SCM port, scm_print_state *pstate)
   return 1;
 }
 
-
 /* This defines the primitve `make-box', which returns a new smob of
    type `box', initialized to `#f'.  */
-LY_DEFINE(package_identifier, "ly:export", 1,0,0, (SCM arg),
-         "Export a Scheme object to the parser, so it is treated as an identifier.")
+LY_DEFINE (ly_export, "ly:export",
+           1, 0, 0, (SCM arg),
+           "Export a Scheme object to the parser"
+           " so it is treated as an identifier.")
 {
-  /* This macro creates the new objects, stores the value `#f' into it
-     and returns it to the caller.  */
   SCM_RETURN_NEWSMOB (package_tag, arg);
 }
 
-
-/* This is the primitive `box-ref' which returns the object stored in
-   the box.  */
 SCM
-unpack_identifier(SCM box)
+unpack_identifier (SCM box)
 {
-  if (SCM_IMP(box) || SCM_CELL_TYPE(box) != package_tag)
+  if (SCM_IMP (box) || SCM_CELL_TYPE (box) != package_tag)
     return SCM_UNDEFINED;
-  
+
   return SCM_CELL_OBJECT_1 (box);
 }
 
@@ -58,4 +60,5 @@ init_box_type (void)
   scm_set_smob_mark (package_tag, scm_markcdr);
   scm_set_smob_print (package_tag, print_box);
 }
-ADD_SCM_INIT_FUNC(package, init_box_type); 
+
+ADD_SCM_INIT_FUNC (package, init_box_type);