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=head1 NAME

BN_swap - exchange BIGNUMs

=head1 SYNOPSIS

 #include <openssl/bn.h>

 void BN_swap(BIGNUM *a, BIGNUM *b);

=head1 DESCRIPTION

BN_swap() exchanges the values of I<a> and I<b>.

L<bn(3)|bn(3)>

=head1 HISTORY

BN_swap was added in OpenSSL 0.9.7.

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