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Diffstat (limited to 'include/openssl/bn.h')
-rw-r--r--include/openssl/bn.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/openssl/bn.h b/include/openssl/bn.h
index c9fba98..37a4bba 100644
--- a/include/openssl/bn.h
+++ b/include/openssl/bn.h
@@ -351,11 +351,11 @@ OPENSSL_EXPORT int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
/* BN_add_word adds |w| to |a|. It returns one on success and zero otherwise. */
OPENSSL_EXPORT int BN_add_word(BIGNUM *a, BN_ULONG w);
-/* BN_sub sets |r| = |a| + |b|, where |r| must be a distinct pointer from |a|
+/* BN_sub sets |r| = |a| - |b|, where |r| must be a distinct pointer from |a|
* and |b|. It returns one on success and zero on allocation failure. */
OPENSSL_EXPORT int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
-/* BN_usub sets |r| = |a| + |b|, where |a| and |b| are non-negative integers,
+/* BN_usub sets |r| = |a| - |b|, where |a| and |b| are non-negative integers,
* |b| < |a| and |r| must be a distinct pointer from |a| and |b|. It returns
* one on success and zero on allocation failure. */
OPENSSL_EXPORT int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);