* ebrowse.c: Use size_t, not int, for sizes.

This avoids a warning with gcc -Wstrict-overflow, and works
better for very large objects.
(inbuffer_size): Now size_t.  All uses changed.
(xmalloc, xrealloc, operator_name, process_file): Use size_t for
sizes.  Don't bother testing whether a size_t value can be negative.

diff --git a/lib-src/ChangeLog b/lib-src/ChangeLog
index 6c25f58..909bee7 100644 (file)
--- a/lib-src/ChangeLog
+++ b/lib-src/ChangeLog
@@ -1,5 +1,12 @@
 2011-03-21  Paul Eggert  <eggert@cs.ucla.edu>
 
+       * ebrowse.c: Use size_t, not int, for sizes.
+       This avoids a warning with gcc -Wstrict-overflow, and works
+       better for very large objects.
+       (inbuffer_size): Now size_t.  All uses changed.
+       (xmalloc, xrealloc, operator_name, process_file): Use size_t for
+       sizes.  Don't bother testing whether a size_t value can be negative.
+
        * etags.c (Ada_funcs): Redo slightly to avoid overflow warning.
 
        etags: In Prolog functions, don't assume int fits in size_t.

diff --git a/lib-src/ebrowse.c b/lib-src/ebrowse.c
index 113b6fd..7871a80 100644 (file)
--- a/lib-src/ebrowse.c
+++ b/lib-src/ebrowse.c
@@ -378,7 +378,7 @@ int max_regexp = 50;
 
 char *inbuffer;
 char *in;
-int inbuffer_size;
+size_t inbuffer_size;
 
 /* Return the current buffer position in the input file.  */
 
@@ -492,7 +492,7 @@ yyerror (const char *format, const char *s)
    available.  */
 
 static void *
-xmalloc (int nbytes)
+xmalloc (size_t nbytes)
 {
   void *p = malloc (nbytes);
   if (p == NULL)
@@ -507,7 +507,7 @@ xmalloc (int nbytes)
 /* Like realloc but print an error and exit if out of memory.  */
 
 static void *
-xrealloc (void *p, int sz)
+xrealloc (void *p, size_t sz)
 {
   p = realloc (p, sz);
   if (p == NULL)
@@ -2792,10 +2792,10 @@ parse_classname (void)
 static char *
 operator_name (int *sc)
 {
-  static int id_size = 0;
+  static size_t id_size = 0;
   static char *id = NULL;
   const char *s;
-  int len;
+  size_t len;
 
   MATCH ();
 
@@ -2811,7 +2811,7 @@ operator_name (int *sc)
       len = strlen (s) + 10;
       if (len > id_size)
        {
-         int new_size = max (len, 2 * id_size);
+         size_t new_size = max (len, 2 * id_size);
          id = (char *) xrealloc (id, new_size);
          id_size = new_size;
        }
@@ -2832,7 +2832,7 @@ operator_name (int *sc)
     }
   else
     {
-      int tokens_matched = 0;
+      size_t tokens_matched = 0;
 
       len = 20;
       if (len > id_size)
@@ -2853,7 +2853,7 @@ operator_name (int *sc)
          len += strlen (s) + 2;
          if (len > id_size)
            {
-             int new_size = max (len, 2 * id_size);
+             size_t new_size = max (len, 2 * id_size);
              id = (char *) xrealloc (id, new_size);
              id_size = new_size;
            }
@@ -3550,7 +3550,7 @@ process_file (char *file)
   fp = open_file (file);
   if (fp)
     {
-      int nread, nbytes;
+      size_t nread, nbytes;
 
       /* Give a progress indication if needed.  */
       if (f_very_verbose)
@@ -3574,12 +3574,10 @@ process_file (char *file)
            }
 
          nbytes = fread (inbuffer + nread, 1, READ_CHUNK_SIZE, fp);
-         if (nbytes <= 0)
+         if (nbytes == 0)
            break;
          nread += nbytes;
        }
-      if (nread < 0)
-       nread = 0;
       inbuffer[nread] = '\0';
 
       /* Reinitialize scanner and parser for the new input file.  */