- int i,n;
- if (bn_expand(a,sizeof(BN_ULONG)*8) == NULL) return(0);
-
- n=sizeof(BN_ULONG)/BN_BYTES;
- a->neg=0;
- a->top=0;
- a->d[0]=(BN_ULONG)w&BN_MASK2;
- if (a->d[0] != 0) a->top=1;
- for (i=1; i<n; i++)
- {
- /* the following is done instead of
- * w>>=BN_BITS2 so compilers don't complain
- * on builds where sizeof(long) == BN_TYPES */
-#ifndef SIXTY_FOUR_BIT /* the data item > unsigned long */
- w>>=BN_BITS4;
- w>>=BN_BITS4;
-#else
- w=0;
-#endif
- a->d[i]=(BN_ULONG)w&BN_MASK2;
- if (a->d[i] != 0) a->top=i+1;
- }