1 files changed, 0 insertions, 19 deletions
diff --git a/src/libbiguint/bu_subc.c b/src/libbiguint/bu_subc.c
deleted file mode 100644
index 63147b0..0000000
--- a/src/libbiguint/bu_subc.c
+++ /dev/null
@@ -1,19 +0,0 @@
-/* ISC license. */
-
-#include <skalibs/bsdsnowflake.h>
-#include <errno.h>
-#include <skalibs/biguint.h>
-
-int bu_subc (uint32_t *c, unsigned int cn, uint32_t const *a, unsigned int an, uint32_t const *b, unsigned int bn, int carry)
-{
-  unsigned int i = 0 ;
-  for (; i < cn ; i++)
-  {
-    uint32_t ai = (i < an) ? a[i] : 0 ;
-    uint32_t bi = (i < bn) ? b[i] : 0 ;
-    uint32_t ci = ai - bi - carry ;
-    carry = (carry || bi) && (ci > ai) ;
-    c[i] = ci ;
-  }
-  return carry ? (errno = EOVERFLOW, 0) : 1 ;
-}