lispdoc - results for ldb |
(ldb bytespec integer) | Setf: The first argument is a byte specifier. The second is any place form acceptable to SETF. Replace the specified byte of the number in this place with bits from the low-order end of the new value.
Function: Extract the specified byte from integer, and right justify result. |
Example:(defun output-type-code (code stream) (declare (type ub32 code)) (write-byte (ldb (byte 8 0) code) stream)) | Mentioned in: CLtL2 - 12.8. Byte Manipulation Functions CLtL2 - 7.2. Generalized Variables HyperSpec - Accessor LDB PCL - binary format basics PCL - integer types PCL - string types PCL - the current object stack Successful Lisp - chapter18 |
(ldb-test bytespec integer) | Function: Return T if any of the specified bits in integer are 1's.
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| Mentioned in: CLtL2 - 12.8. Byte Manipulation Functions HyperSpec - Function LDB-TEST Successful Lisp - chapter18 | |
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| By Bill Moorier |
