Hi, I have two questions about the new SYS:SIMPLE-INT64-VECTOR in 64-bit LispWorks 7: 1. What’s the predicate for this type? Actually I found an internal function SYS::SIMPLE-INT64-VECTOR-P which seems to work ... 2. How to get the length of a SYS:SIMPLE-INT64-VECTOR? Currently I’m using this way: (LENGTH (SYS::SIMPLE-INT64-VECTOR-DATA …)), is there a better one? Thanks, Chun Tian (binghe)
> On 24 Dec 2015, at 00:59, Chun Tian (binghe) <binghe.lisp@gmail.com> wrote: > > Hi, > > I have two questions about the new SYS:SIMPLE-INT64-VECTOR in 64-bit LispWorks 7: > > 1. What’s the predicate for this type? > > Actually I found an internal function SYS::SIMPLE-INT64-VECTOR-P which seems to work … (typep thing ‘sys:simple-int64-vector) seems to do the trick. > 2. How to get the length of a SYS:SIMPLE-INT64-VECTOR? > > Currently I’m using this way: (LENGTH (SYS::SIMPLE-INT64-VECTOR-DATA …)), is there a better one? This may defeat the purpose of simple-int64-vector: (type-of (sys::simple-int64-vector-data …)) returns (simple-array (signed-byte 64) …), and (signed-byte 64) values probably need to be boxed. It seems to me that the -data function is only there for debugging purposes, but I’m only guessing… I don’t see any other way to determine the length of such a vector. You may have to record the length separately. Pascal -- Pascal Costanza The views expressed in this email are my own, and not those of my employer. _______________________________________________ Lisp Hug - the mailing list for LispWorks users lisp-hug@lispworks.com http://www.lispworks.com/support/lisp-hug.html