Fix sub-variation display with negative score

The test if the displayed score was the pvInfo score failed for negative
scores, because floats are truncated towards zero. So the previous fix
of spurious score/depth info was not working when the score was
negative.

diff --git a/backend.c b/backend.c
index 193ab42..847b609 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -13302,7 +13302,7 @@ ReplaceComment(index, text)
 
     if(index && sscanf(text, "%f/%d", &score, &len) == 2 && 
        pvInfoList[index-1].depth == len &&
-       pvInfoList[index-1].score == (int) (score*100 + 0.5) &&
+       fabs(pvInfoList[index-1].score - score*100.) < 0.5 &&
        (p = strchr(text, '\n'))) text = p; // [HGM] strip off first line with PV info, if any
     while (*text == '\n') text++;
     len = strlen(text);