1 files changed, 0 insertions, 1 deletions
diff --git a/lib/ad.c b/lib/ad.c
index fd0e40e..875f827 100644
--- a/lib/ad.c
+++ b/lib/ad.c
@@ -27,7 +27,6 @@ int ts_ad(
 {
 	TS_PROLOGUE( ts_ad_p );
 	(void)c;
-    if( n == 0 ) return -1;
 
     fp_t hl0 = ts_h( x, 0 ) - ts_l( x, 0 );
     y[0][0] = hl0 != 0