BN_one man page on Tru64

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BN_zero(3)							    BN_zero(3)

NAME
       BN_zero,	  BN_one,  BN_value_one,  BN_set_word,	BN_get_word  -	BIGNUM
       assignment operations

SYNOPSIS
       #include <openssl/bn.h>

       int BN_zero(
	       BIGNUM *a ); int BN_one(
	       BIGNUM *a ); BIGNUM *BN_value_one(
	       void ); int BN_set_word(
	       BIGNUM *a, unsigned long w ); unsigned long BN_get_word(
	       BIGNUM *a );

DESCRIPTION
       The BN_zero(), BN_one(), and BN_set_word() functions set a to the  val‐
       ues 0, 1 and w respectively.  BN_zero() and BN_one() are macros.

       The  BN_value_one() function returns a BIGNUM constant of value 1. This
       constant is useful for use in comparisons and assignment.

       The BN_get_word() function returns a, if it can be  represented	as  an
       unsigned long.

RETURN VALUES
       The  BN_get_word()  function  returns the value a, and 0xffffffffL if a
       cannot be represented as an unsigned long.

       The BN_zero(), BN_one(), and BN_set_word() functions return 1  on  suc‐
       cess, 0 otherwise. The BN_value_one() function returns the constant.

RESTRICTIONS
       Someone might change the constant.

       If  a  BIGNUM  is  equal	 to  0xffffffffL  it  can be represented as an
       unsigned long but this value is also returned on error.

HISTORY
       The BN_zero(), BN_one(), and BN_set_word() functions are	 available  in
       all   versions	of   SSLeay   and   OpenSSL.  The  BN_value_one()  and
       BN_get_word() functions were added in SSLeay 0.8.

SEE ALSO
       Functions: bn(3), BN_bn2bin(3)

								    BN_zero(3)
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