Sophie: sbcl-1.0.31-1mdv2010.0 i586

sbcl-1.0.31-1mdv2010.0.i586.rpm

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<h4 class="subsection">16.3.4 Function Return Values</h4>

<p>The return value is usually the same as for the C binding, except in
error cases: where the C function is defined as returning some sentinel
value and setting <code>errno</code> on error, we instead signal an error of
type <code>SYSCALL-ERROR</code>.  The actual error value (<code>errno</code>) is
stored in this condition and can be accessed with <code>SYSCALL-ERRNO</code>.

   <p>We do not automatically translate the returned value into &ldquo;Lispy&rdquo;
objects &ndash; for example, <code>SB-POSIX:OPEN</code> returns a small integer,
not a stream.  Exception: boolean-returning functions (or, more
commonly, macros) do not return a C integer, but instead a Lisp
boolean.

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