Change the compiler's big integer library to use libTomMath

This now replaces Bill's crappy big int implementation

1 files changed, 13 insertions, 0 deletions

diff --git a/src/libtommath/mp_complement.c b/src/libtommath/mp_complement.c
new file mode 100644
index 000000000..c16e25f9d
--- /dev/null
+++ b/src/libtommath/mp_complement.c
@@ -0,0 +1,13 @@
+#include "tommath_private.h"
+#ifdef MP_COMPLEMENT_C
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+
+/* b = ~a */
+mp_err mp_complement(const mp_int *a, mp_int *b)
+{
+   mp_int a_ = *a;
+   a_.sign = ((a_.sign == MP_ZPOS) && !mp_iszero(a)) ? MP_NEG : MP_ZPOS;
+   return mp_sub_d(&a_, 1uL, b);
+}
+#endif