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<h3>
Raymond Toy pushed to branch master
at <a href="https://gitlab.common-lisp.net/cmucl/cmucl">cmucl / cmucl</a>
</h3>
<h4>
Commits:
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<li>
<strong><a href="https://gitlab.common-lisp.net/cmucl/cmucl/commit/0fc0061b5302f516f051a599685b8be575535643">0fc0061b</a></strong>
<div>
<span>by Raymond Toy</span>
<i>at 2015-12-27T10:16:45Z</i>
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<pre class='commit-message'>Disable FP traps when printing arithmetic-error messages

Printing of FP numbers can signal some traps like overflow, underflow,
inexact, or denormalized-operand, so we need to disable these traps
when printing out the error message for arithmetic errors.</pre>
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<h4>1 changed file:</h4>
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<li class='file-stats'>
<a href='#diff-0'>
src/code/error.lisp
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<h4>Changes:</h4>
<li id='diff-0'>
<a href='https://gitlab.common-lisp.net/cmucl/cmucl/commit/0fc0061b5302f516f051a599685b8be575535643#diff-0'>
<strong>
src/code/error.lisp
</strong>
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<pre class="highlight"><code><span style="color: #000000;background-color: #ffdddd">--- a/src/code/error.lisp
</span><span style="color: #000000;background-color: #ddffdd">+++ b/src/code/error.lisp
</span><span style="color: #aaaaaa">@@ -1138,9 +1138,14 @@
</span>        (format stream (intl:gettext "Arithmetic error ~S signalled.")
                     (type-of condition))
             (when (arithmetic-error-operation condition)
<span style="color: #000000;background-color: #ffdddd">-               (format stream (intl:gettext "~%Operation was ~S, operands ~S.")
-                      (arithmetic-error-operation condition)
-                      (arithmetic-error-operands condition))))))
</span><span style="color: #000000;background-color: #ddffdd">+          ;; Printing the operands can signal these FP traps, so
+              ;; disable them while we're printing out the error
+              ;; message.
+              (with-float-traps-masked (:overflow :underflow :inexact
+                                        #+x86 :denormalized-operand)
+                (format stream (intl:gettext "~%Operation was ~S, operands ~S.")
+                        (arithmetic-error-operation condition)
+                        (arithmetic-error-operands condition)))))))
</span> 
 (define-condition division-by-zero         (arithmetic-error) ())
 (define-condition floating-point-overflow  (arithmetic-error) ())
</code></pre>

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