* flower

[lilypond.git] / lily / scm-hash.cc

diff --git a/lily/scm-hash.cc b/lily/scm-hash.cc
index 7497d699d4f2734202cab2ff5bccadcb672dce6d..2e21757f4ca6f8181befa205cb38d5a99049b623 100644 (file)
--- a/lily/scm-hash.cc
+++ b/lily/scm-hash.cc
@@ -1,33 +1,33 @@
-/*   
-  scm-hash.cc --  implement Scheme_hash_table
-  
+/*
+  scm-hash.cc -- implement Scheme_hash_table
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
-#include <stdio.h>
+
+  (c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
 
 #include "scm-hash.hh"
+
+#include <cstdio>
+
 #include "ly-smobs.icc"
 
 /*
   Return: number of objects.
- */
+*/
 int
 copy_scm_hashes (SCM dest, SCM src)
 {
   int k = 0;
-  for (int i = SCM_VECTOR_LENGTH (src); i--;)
+  for (int i = scm_c_vector_length (src); i--;)
     for (SCM s = scm_vector_ref (src, scm_from_int (i)); scm_is_pair (s); s = scm_cdr (s))
       {
        scm_hashq_set_x (dest, scm_caar (s), scm_cdar (s));
        k++;
       }
-  return k ;
+  return k;
 }
 
-
 Scheme_hash_table::Scheme_hash_table ()
 {
   hash_tab_ = SCM_EOL;
@@ -36,7 +36,6 @@ Scheme_hash_table::Scheme_hash_table ()
   elt_count_ = 0;
 }
 
-
 Scheme_hash_table::Scheme_hash_table (Scheme_hash_table const &src)
 
 {
@@ -44,24 +43,28 @@ Scheme_hash_table::Scheme_hash_table (Scheme_hash_table const &src)
   elt_count_ = 0;
   smobify_self ();
 
-  hash_tab_ = scm_make_vector (scm_int2num (src.elt_count_ >? 11 ), SCM_EOL);  
+  hash_tab_ = scm_make_vector (scm_int2num (src.elt_count_ >? 11), SCM_EOL);
   elt_count_ = copy_scm_hashes (hash_tab_, src.hash_tab_);
 }
 
 void
-Scheme_hash_table::operator = (Scheme_hash_table const & src)
+Scheme_hash_table::operator= (Scheme_hash_table const &src)
 {
   if (&src == this)
     return;
-  
-  hash_tab_ = scm_make_vector (scm_int2num (src.elt_count_ >? 11), SCM_EOL);  
+
+  hash_tab_ = scm_make_vector (scm_int2num (src.elt_count_ >? 11), SCM_EOL);
   elt_count_ = copy_scm_hashes (hash_tab_, src.hash_tab_);
 }
 
+Scheme_hash_table::~Scheme_hash_table ()
+{
+}
+
 SCM
 Scheme_hash_table::mark_smob (SCM s)
 {
-  Scheme_hash_table *me = (Scheme_hash_table*) SCM_CELL_WORD_1 (s);
+  Scheme_hash_table *me = (Scheme_hash_table *) SCM_CELL_WORD_1 (s);
   scm_gc_mark (me->hash_tab_);
   return SCM_EOL;
 }
@@ -72,9 +75,9 @@ Scheme_hash_table::print_smob (SCM s, SCM p, scm_print_state*)
   assert (unsmob (s));
   char str[1000];
   sprintf (str, "#<Scheme_hash_table 0x%0lx ", SCM_UNPACK (s));
-  Scheme_hash_table *me = (Scheme_hash_table*) SCM_CELL_WORD_1 (s);
-  scm_display (me->hash_tab_, p);      
-  scm_puts ("> ",p);        
+  Scheme_hash_table *me = (Scheme_hash_table *) SCM_CELL_WORD_1 (s);
+  scm_display (me->hash_tab_, p);
+  scm_puts ("> ", p);
   return 1;
 }
 
@@ -89,7 +92,6 @@ Scheme_hash_table::try_retrieve (SCM k, SCM *v)
     }
   else
     return false;
-
 }
 
 bool
@@ -104,30 +106,28 @@ Scheme_hash_table::set (SCM k, SCM v)
   assert (scm_is_symbol (k));
   SCM handle = scm_hashq_create_handle_x (hash_tab_, k, SCM_UNDEFINED);
   if (scm_cdr (handle) == SCM_UNDEFINED)
-    {
-      elt_count_++;
-    }
-  
+    elt_count_++;
+
   scm_set_cdr_x (handle, v);
 
   /*
     resize if getting too large.
   */
-  if (elt_count_ > 2 * SCM_VECTOR_LENGTH (hash_tab_))
+  if (elt_count_ > 2 * scm_c_vector_length (hash_tab_))
     {
-      SCM nh = scm_make_vector (scm_int2num (3* elt_count_+1), SCM_EOL);
+      SCM nh = scm_make_vector (scm_int2num (3* elt_count_ + 1), SCM_EOL);
       elt_count_ = copy_scm_hashes (nh, hash_tab_);
       hash_tab_ = nh;
     }
 }
 
-// UGH. 
+// UGH.
 SCM
 Scheme_hash_table::get (SCM k) const
 {
   /*
     42 will stick out like a sore thumb, hopefully.
-   */
+  */
   return scm_hashq_ref (hash_tab_, k, scm_from_int (42));
 }
 
@@ -135,33 +135,20 @@ void
 Scheme_hash_table::remove (SCM k)
 {
   scm_hashq_remove_x (hash_tab_, k);
-  /*
-    don't decrease elt_count_ , as this may cause underflow. The exact
-    value of elt_count_ is not important.
-   */
-}
-
-Scheme_hash_table::~Scheme_hash_table ()
-{
+  /* Do not decrease elt_count_ as this may cause underflow.  The exact
+     value of elt_count_ is not important. */
 }
 
 SCM
 Scheme_hash_table::to_alist () const
 {
-  SCM l = SCM_EOL;
-  for (int i = SCM_VECTOR_LENGTH (hash_tab_); i--;)
-    for (SCM s = scm_vector_ref (hash_tab_, scm_int2num (i)); scm_is_pair (s); s = scm_cdr (s))
-      {
-       l = scm_acons (scm_caar (s), scm_cdar (s), l);
-      }
-  return l;  
+  SCM lst = SCM_EOL;
+  for (int i = scm_c_vector_length (hash_tab_); i--;)
+    for (SCM s = scm_vector_ref (hash_tab_, scm_int2num (i)); scm_is_pair (s);
+        s = scm_cdr (s))
+      lst = scm_acons (scm_caar (s), scm_cdar (s), lst);
+  return lst;
 }
 
-
-
-
-
 IMPLEMENT_SMOBS (Scheme_hash_table);
 IMPLEMENT_DEFAULT_EQUAL_P (Scheme_hash_table);
-
-