Commit 20d2aaf2 authored by Hubert Kario's avatar Hubert Kario
Browse files

doc: BN_free() is NULL-safe 



document that parameter to BN_free can be NULL

backport from master

Reviewed-by: default avatarRichard Levitte <levitte@openssl.org>
Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4439)
parent 8372efbd

doc/crypto/BN_new.pod

+1 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ to the value 0. 
BN_free() frees the components of the B<BIGNUM>, and if it was created

by BN_new(), also the structure itself. BN_clear_free() additionally

overwrites the data before the memory is returned to the system.

If B<a> is NULL, nothing is done.



=head1 RETURN VALUES