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-rw-r--r--doc/man3/BIO_get_ex_new_index.pod4
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/man3/BIO_get_ex_new_index.pod b/doc/man3/BIO_get_ex_new_index.pod
index f26b573350d9..95bdc7938950 100644
--- a/doc/man3/BIO_get_ex_new_index.pod
+++ b/doc/man3/BIO_get_ex_new_index.pod
@@ -89,10 +89,10 @@ TYPE_get_ex_new_index() is a macro that calls CRYPTO_get_ex_new_index()
with the correct B<index> value.
TYPE_set_ex_data() is a function that calls CRYPTO_set_ex_data() with
-an offset into the opaque exdata part of the TYPE object.
+an offset into the opaque exdata part of the TYPE object. I<d> B<MUST NOT> be NULL.
TYPE_get_ex_data() is a function that calls CRYPTO_get_ex_data() with
-an offset into the opaque exdata part of the TYPE object.
+an offset into the opaque exdata part of the TYPE object. I<d> B<MUST NOT> be NULL.
For compatibility with previous releases, the exdata index of zero is
reserved for "application data." There are two convenience functions for