Fix the iterator, so that it ends before the '\0'.

diff --git a/lib/ChangeLog b/lib/ChangeLog
index 394c5c97cc80a66557b42d7dc1307c56098abab6..6fc257347f52963c0d470da9a884d445c62f6a6a 100644 (file)
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,10 @@
+2005-08-16  Bruno Haible  <bruno@clisp.org>
+
+       * strcasecmp.c (struct mbiter_multi): Remove at_end field.
+       (mbi_init): Update.
+       (mbi_avail, mbi_advance): Let the iteration end before the terminating
+       NUL byte, not after it.
+
 2005-08-16  Bruno Haible  <bruno@clisp.org>
 
        * mbchar.h (mb_cmp, mb_casecmp): Order the invalid characters after

diff --git a/lib/strcasecmp.c b/lib/strcasecmp.c
index 65a29a95876d3053d83970d5feef27e1ef39edd8..e1f414c287f4376394553b8862809614dc1736d6 100644 (file)
--- a/lib/strcasecmp.c
+++ b/lib/strcasecmp.c
@@ -30,7 +30,8 @@
 
 #include "strnlen1.h"
 
-/* Like mbiter.h, except it doesn't look at the entire string.  */
+/* Like mbiter.h, except it doesn't look at the entire string, only at
+   very few bytes past the current point.  */
 
 #include "mbchar.h"
 
@@ -42,7 +43,6 @@
 
 struct mbiter_multi
 {
-  bool at_end;         /* true if the end of the string has been reached */
   bool in_shift;       /* true if next byte may not be interpreted as ASCII */
   mbstate_t state;     /* if in_shift: current shift state */
   bool next_done;      /* true if mbi_avail has already filled the following */
@@ -119,14 +119,13 @@ mbiter_multi_next (struct mbiter_multi *iter)
 /* Iteration macros.  */
 typedef struct mbiter_multi mbi_iterator_t;
 #define mbi_init(iter, startptr) \
-  ((iter).cur.ptr = (startptr), (iter).at_end = false, \
+  ((iter).cur.ptr = (startptr), \
    (iter).in_shift = false, memset (&(iter).state, '\0', sizeof (mbstate_t)), \
    (iter).next_done = false)
 #define mbi_avail(iter) \
-  (!(iter).at_end && (mbiter_multi_next (&(iter)), true))
+  (mbiter_multi_next (&(iter)), !mb_isnul ((iter).cur))
 #define mbi_advance(iter) \
-  ((mb_isnul ((iter).cur) ? ((iter).at_end = true) : 0), \
-   (iter).cur.ptr += (iter).cur.bytes, (iter).next_done = false)
+  ((iter).cur.ptr += (iter).cur.bytes, (iter).next_done = false)
 
 /* Access to the current character.  */
 #define mbi_cur(iter) (iter).cur