_BCDPTR - create a BCD pointer.

Usage:

B:
   newptr = _bcdptr(oldptr, offset);

C:
   void *_bcdptr(void *oldptr,int offset);

Where:

oldptr: is a BCD pointer created by a previous call to _BCDPTR, or else a regular B array pointer.
offset: is a positive or negative offset in 6 bit characters from 'oldptr'.
newptr: is another BCD pointer. This points to the BCD character that is the given offset (number of BCD characters) from the BCD character indicated by "oldptr".

Description:

_BCDPTR creates BCD pointer. This is a special type of pointer guaranteed to point to a BCD character. For example,

new = _bcdptr(old,-1)

returns a pointer to the BCD character immediately preceding the one indicated by "old". "old" can be a pointer to a word boundary, or to another BCD character.

BCD pointers can only be used in a limited set of operations: comparisons for equality/inequality and assignments. The BCD string indicated by a BCD pointer can be printed with the "%_s" placeholder of "printf" and related routines.

_BCDPTR - create a BCD pointer.

Usage:

Where:

Description:

See Also: