Commit e6e81c58 authored by Ulf Möller's avatar Ulf Möller
Browse files

oops... the description of ->top was inaccurate (the example is correct though)

parent f75abcef

doc/crypto/bn_internal.pod

+3 −3
Original line number Diff line number Diff line
@@ -72,7 +72,7 @@ applications. 


 typedef struct bignum_st

        {

        int top;      /* index of last used d (most significant word) */

        int top;      /* index of last used d (most significant word) + 1 */

        BN_ULONG *d;  /* pointer to an array of 'BITS2' bit chunks */

        int max;      /* size of the d array */

        int neg;      /* sign */
@@ -84,7 +84,7 @@ in size (B<BITS2>), depending on the 'number of bits' specified in 
C<openssl/bn.h>.



B<max> is the size of the B<d> array that has been allocated.  B<top>

is the 'last' entry being used, so for a value of 4, bn.d[0]=4 and

is the 'last' entry being used plus one, so for a value of 4, bn.d[0]=4 and

bn.top=1.  B<neg> is 1 if the number is negative.  When a B<BIGNUM> is

B<0>, the B<d> field can be B<NULL> and B<top> == B<0>.
@@ -202,7 +202,7 @@ call bn_expand2(), which allocates a new B<d> array and copies the 
data.  They return B<NULL> on error, B<b> otherwise.



The bn_fix_top() macro reduces B<a-E<gt>top> to point to the most

significant non-zero word when B<a> has shrunk.

significant non-zero word plus one when B<a> has shrunk.



=head2 Debugging