Tiny bugfix in solution writing

1 files changed, 9 insertions, 14 deletions

diff --git a/src/core/io_moves.h b/src/core/io_moves.h
index 8c56a9f..b00682b 100644
--- a/src/core/io_moves.h
+++ b/src/core/io_moves.h
@@ -79,36 +79,31 @@ writemoves(
         char buf[buf_size]
 )
 {
-        size_t i, len, written;
+        size_t i, len, w;
         const char *s;
-        char *b;
 
         if (buf_size == 0) {
                 LOG("Error: cannot write moves to buffer of size 0.\n");
                 return NISSY_ERROR_BUFFER_SIZE;
         }
 
-        for (i = 0, b = buf, written = 0; i < nmoves; i++, b++, written++) {
+        for (i = 0, w = 0; i < nmoves; i++, w++) {
                 s = movestr[m[i]];
                 len = strlen(s);
-                if (len + written >= buf_size) {
+                if (len + w >= buf_size) {
                         LOG("Error: the given buffer is too small for "
                              "writing the given moves.\n");
                         goto writemoves_error;
                 }
-                memcpy(b, s, len);
-                written += len;
-                b += len;       
-                *b = ' ';
+                memcpy(buf+w, s, len);
+                w += len;
+                buf[w] = ' ';
         }
 
-        if (b == buf)
-                written = 1; /* Nothing written, only NULL-terminator */
-        else
-                b--; /* Remove last space */
-        *b = '\0';
+        if (w > 0) w--; /* Remove last space */
+        buf[w] = '\0';
 
-        return (int64_t)written;
+        return (int64_t)w;
 
 writemoves_error:
         *buf = '\0';