<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Seems to be Windows-specific.  I can’t reproduce this on my mac.<div><br><div><div>On Apr 12, 2017, at 2:30 AM, Nicolas Hafner <<a href="mailto:shinmera@tymoon.eu">shinmera@tymoon.eu</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
  
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
  
  <div text="#000000" bgcolor="#FFFFFF"><p>This case can be further reduced to the following, which does not
      require the library:</p><div> <br class="webkit-block-placeholder"></div>
    <tt>(defstruct vec<br>
        (x 0.0 :type single-float)<br>
        (y 0.0 :type single-float))<br>
      <br>
      (let ((vec (make-vec)))<br>
        (psetf (vec-x vec) 5.0<br>
               (vec-y vec) 5.0))</tt><br>
    <br>
    The specific trigger combination seems to be psetf with typed
    structure slots.<br>
    <br>
    <div class="moz-cite-prefix">On 12/04/17 11:20, gzip4 wrote:<br>
    </div>
    <blockquote cite="mid:CAK0Se9nK29nYwW2Q3izJ2o=tfNoh3nye3eu_QiWwCcR7zmmjkw@mail.gmail.com" type="cite">
      <div dir="ltr">
        <div><span style="font-family:arial,helvetica,sans-serif">Hello,
            All!<br>
            <br>
          </span></div>
        <div><span style="font-family:arial,helvetica,sans-serif">To
            reproduce the issue:<br>
          </span></div>
        <div><span style="font-family:arial,helvetica,sans-serif"><br>
            <br>
          </span><span style="font-family:monospace,monospace">(lisp-implementation-version)<br>
            "Version 1.11-r16635  (WindowsX8632)"<br>
            <br>
            (ql:quickload '3d-vectors)<br>
            <br>
            (let ((vec (3d-vectors::vec 5 0 0)))<br>
              (psetf (3d-vectors::%vx3 vec) 5.0<br>
                     (3d-vectors::%vy3 vec) 5.0))</span>
          <div><br>
          </div>
          <div>Signal error:<br>
            The value 5.0 is not of the expected type STRUCTURE.<br>
            [Condition of type TYPE-ERROR]<br>
            <br>
          </div>
          <div>The problem seems to be related to <code>psetf</code>.
            If you remove one of the set pairs, it works fine. If you
            use <code>setf</code>, it also works fine.<br>
            <br>
          </div>
          <div>64 bit versions do not have such an issue, LinuxARM32
            also passes.<br>
          </div>
          <div><br>
            -- <br>
            <div class="gmail_signature">gzip4</div>
          </div>
        </div>
      </div>
    </blockquote>
    <br>
  </div>

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