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-rw-r--r--src/lib/math/mp/mp_misc.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib/math/mp/mp_misc.cpp b/src/lib/math/mp/mp_misc.cpp
index 4f24765bb..3b8be177e 100644
--- a/src/lib/math/mp/mp_misc.cpp
+++ b/src/lib/math/mp/mp_misc.cpp
@@ -43,6 +43,9 @@ s32bit bigint_cmp(const word x[], size_t x_size,
*/
word bigint_divop(word n1, word n0, word d)
{
+ if(d == 0)
+ throw std::runtime_error("bigint_divop divide by zero");
+
word high = n1 % d, quotient = 0;
for(size_t i = 0; i != MP_WORD_BITS; ++i)