1 files changed, 3 insertions, 3 deletions
diff --git a/src/libstddjb/tain_sub.c b/src/libstddjb/tain_sub.c
index 2921aa6..0d756e7 100644
--- a/src/libstddjb/tain_sub.c
+++ b/src/libstddjb/tain_sub.c
@@ -4,12 +4,12 @@
 
 int tain_sub (tain_t *t, tain_t const *u, tain_t const *v)
 {
-  tain_t tt = *u ;
-  if (!tai_sub(&tt.sec, &u->sec, &v->sec)) return 0 ;
+  tain_t tt ;
+  tt.sec.x = u->sec.x - v->sec.x ;
   tt.nano = u->nano - v->nano ;
   if (tt.nano > u->nano)
   {
-    if (!tai_u64(&tt.sec, tai_sec(&tt.sec) - 1)) return 0 ;
+    tt.sec.x-- ;
     tt.nano += 1000000000U ;
   }
   *t = tt ;