Fixes: debbugs:17865

* coding.c (encode_coding_utf_8): Correctly count produced_chars
also in unibyte case.

2 files changed, 6 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 3e3c0cba183..eac62eef7a7 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2014-06-28  Andreas Schwab  <schwab@linux-m68k.org>
+
+        * coding.c (encode_coding_utf_8): Correctly count produced_chars
+        also in unibyte case.  (Bug#17865)
+
 2014-06-25  Glenn Morris  <rgm@gnu.org>
 
         * puresize.h (BASE_PURESIZE): Increase a bit.  (Bug#17846)
diff --git a/src/coding.c b/src/coding.c
index 654e39c0e3d..bd4a8be08b3 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -1549,8 +1549,8 @@ encode_coding_utf_8 (struct coding_system *coding)
             *dst++ = CHAR_TO_BYTE8 (c);
           else
             CHAR_STRING_ADVANCE_NO_UNIFY (c, dst);
-          produced_chars++;
         }
+      produced_chars = dst - (coding->destination + coding->produced);
     }
   record_conversion_result (coding, CODING_RESULT_SUCCESS);
   coding->produced_char += produced_chars;