Use 'unsigned int' instead of 'int' where it makes sense.

ChangeLog

@@ -1,3 +1,17 @@
+2002-12-08  Bruno Haible  <bruno@clisp.org>
+
+	* src/search.h (Search::_alpha_size): Change type to 'unsigned int'.
+	(Search::_asso_value_max): Likewise.
+	* src/search.cc (Search::prepare_asso_values): Update.
+	(Search::init_asso_values): Update.
+	(Search::~Search): Update.
+	* src/output.h (Output::Output): Change alpha_size type to
+	'unsigned int'.
+	(Output::_alpha_size): Change type to 'unsigned int'.
+	* src/output.cc (Output::Output): Change alpha_size type to
+	'unsigned int'.
+	(Output::output_hash_function): Update.
+
 2002-12-07  Bruno Haible  <bruno@clisp.org>
 
 	* src/options.h (OPT_CHOICE): New enum value.

src/output.cc

@@ -88,8 +88,8 @@ Output::Output (KeywordExt_List *head, const char *struct_decl,
                 unsigned int verbatim_code_lineno,
                 int total_keys, int max_key_len, int min_key_len,
                 const Positions& positions, const unsigned int *alpha_inc,
-                int total_duplicates, int alpha_size, const int *occurrences,
-                const int *asso_values)
+                int total_duplicates, unsigned int alpha_size,
+                const int *occurrences, const int *asso_values)
   : _head (head), _struct_decl (struct_decl),
     _struct_decl_lineno (struct_decl_lineno), _return_type (return_type),
     _struct_tag (struct_tag),
@@ -486,7 +486,7 @@ Output::output_hash_function () const
       for (int trunc = _max_hash_value; (trunc /= 10) > 0;)
         field_width++;
 
-      for (int count = 0; count < _alpha_size; count++)
+      for (unsigned int count = 0; count < _alpha_size; count++)
         {
           if (count > 0)
             printf (",");

src/output.h

@@ -53,7 +53,7 @@ public:
                                 const Positions& positions,
                                 const unsigned int *alpha_inc,
                                 int total_duplicates,
-                                int alpha_size,
+                                unsigned int alpha_size,
                                 const int *occurrences,
                                 const int *asso_values);
 
@@ -131,7 +131,7 @@ private:
   /* Maximum hash value for all keywords. */
   int                   _max_hash_value;
   /* Size of alphabet. */
-  int const             _alpha_size;
+  unsigned int const    _alpha_size;
   /* Counts occurrences of each key set character. */
   const int * const     _occurrences;
   /* Value associated with each character. */

src/search.cc

@@ -804,10 +804,10 @@ void
 Search::prepare_asso_values ()
 {
   int non_linked_length = keyword_list_length ();
-  int asso_value_max;
+  unsigned int asso_value_max;
 
   asso_value_max =
-    static_cast<int>(non_linked_length * option.get_size_multiple());
+    static_cast<unsigned int>(non_linked_length * option.get_size_multiple());
   /* Round up to the next power of two.  This makes it easy to ensure
      an _asso_value[c] is >= 0 and < asso_value_max.  Also, the jump value
      being odd, it guarantees that Search::try_asso_value() will iterate
@@ -880,7 +880,7 @@ Search::init_asso_values ()
 {
   if (_initial_asso_value < 0)
     {
-      for (int i = 0; i < _alpha_size; i++)
+      for (unsigned int i = 0; i < _alpha_size; i++)
         _asso_values[i] = rand () & (_asso_value_max - 1);
     }
   else
@@ -888,7 +888,7 @@ Search::init_asso_values ()
       int asso_value = _initial_asso_value;
 
       asso_value = asso_value & (_asso_value_max - 1);
-      for (int i = 0; i < _alpha_size; i++)
+      for (unsigned int i = 0; i < _alpha_size; i++)
         _asso_values[i] = asso_value;
     }
 }
@@ -1534,7 +1534,7 @@ Search::~Search ()
     {
       fprintf (stderr, "\ndumping occurrence and associated values tables\n");
 
-      for (int i = 0; i < _alpha_size; i++)
+      for (unsigned int i = 0; i < _alpha_size; i++)
         if (_occurrences[i])
           fprintf (stderr, "asso_values[%c] = %6d, occurrences[%c] = %6d\n",
                    i, _asso_values[i], i, _occurrences[i]);

src/search.h

@@ -138,7 +138,7 @@ public:
   int                   _total_duplicates;
 
   /* Size of alphabet.  */
-  int                   _alpha_size;
+  unsigned int          _alpha_size;
 
   /* Counts occurrences of each key set character.
      _occurrences[c] is the number of times that c occurs among the _selchars
@@ -156,7 +156,7 @@ private:
   bool *                _determined;
 
   /* Exclusive upper bound for every _asso_values[c].  A power of 2.  */
-  int                   _asso_value_max;
+  unsigned int          _asso_value_max;
 
   /* Initial value for asso_values table.  -1 means random.  */
   int                   _initial_asso_value;