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+.TH LIBKECCAK_STATE_FAST_FREE 3 LIBKECCAK-%VERSION%
+.SH NAME
+libkeccak_hmac_fast_free - Destroys and deallocates an HMAC-hashing state without erasure
+.SH SYNOPSIS
+.LP
+.nf
+#include <libkeccak.h>
+.P
+void libkeccak_hmac_fast_free(libkeccak_hmac_state_t *\fIstate\fP);
+.fi
+.P
+Link with \fI-lkeccak\fP.
+.SH DESCRIPTION
+The
+.BR libkeccak_hmac_fast_free ()
+function releases the allocations stored in \fI*state\fP,
+and also released the allocation of \fIstate\fP.
+.PP
+The
+.BR libkeccak_hmac_fast_free ()
+function does not securely erase sensitive data.
+.SH RETURN VALUES
+The
+.BR libkeccak_hmac_fast_free ()
+function does not return any value.
+.SH ERRORS
+The
+.BR libkeccak_hmac_fast_free ()
+function cannot fail.
+.SH NOTES
+A double call to
+.BR libkeccak_hmac_fast_free ()
+will either result in a double free,
+which is must likely to crash the process,
+or free an allocation (that was created
+between the calls) that was not intended
+to be freed, resulting in undefined behaviour.
+.SH SEE ALSO
+.BR libkeccak_hmac_fast_destroy (3),
+.BR libkeccak_hmac_free (3),
+.BR libkeccak_hmac_create (3),
+.BR libkeccak_hmac_initialise (3),
+.BR libkeccak_hmac_reset (3),
+.BR libkeccak_hmac_wipe (3)
+.SH AUTHORS
+Principal author, Mattias Andrée. See the LICENSE file for the full
+list of authors.
+.SH BUGS
+Please report bugs to https://github.com/maandree/libkeccak/issues or to
+maandree@member.fsf.org