Fix bad compare in BigInt <<=

Caused an extra allocation for no reason in some cases.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/math/bigint/big_ops2.cpp b/src/lib/math/bigint/big_ops2.cpp
index 78c868a5d..35e90fb89 100644
--- a/src/lib/math/bigint/big_ops2.cpp
+++ b/src/lib/math/bigint/big_ops2.cpp
@@ -320,7 +320,7 @@ BigInt& BigInt::operator<<=(size_t shift)
 
    const size_t bits_free = top_bits_free();
 
-   const size_t new_size = size + shift_words + (bits_free < shift);
+   const size_t new_size = size + shift_words + (bits_free < shift_bits);
 
    m_data.grow_to(new_size);