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<title>3.4.2 Limitations and other considerations
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<H2><A NAME=
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3.4.2 Limitations and other considerations
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Setting up a given processor to trap IEEE-
754 floating point
errors currently requires custom code on a per-architecture basis.
You may have to modify
<tt class=
"module">fpectl
</tt> to control your particular hardware.
Conversion of an IEEE-
754 exception to a Python exception requires
that the wrapper macros
<code>PyFPE_START_PROTECT
</code> and
<code>PyFPE_END_PROTECT
</code> be inserted into your code in an appropriate
fashion. Python itself has been modified to support the
<tt class=
"module">fpectl
</tt> module, but many other codes of interest to numerical
The
<tt class=
"module">fpectl
</tt> module is not thread-safe.
<p class=
"heading">See Also:
</p>
<div class=
"seetext"><p>Some files in the source distribution may be interesting in
learning more about how this module operates.
The include file
<span class=
"file">Include/pyfpe.h
</span> discusses the
implementation of this module at some length.
<span class=
"file">Modules/fpetestmodule.c
</span> gives several examples of
Many additional examples can be found in
<span class=
"file">Objects/floatobject.c
</span>.
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<span class=
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2.4.2, documentation updated on
28 September
2005.
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