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<link title="Weak" rel="Chapter" href="Weak.html"><title>Printexc</title>
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<center><h1>Module <a href="type_Printexc.html">Printexc</a></h1></center>
<br>
<pre><span class="keyword">module</span> Printexc: <code class="code"><span class="keyword">sig</span></code> <a href="Printexc.html">..</a> <code class="code"><span class="keyword">end</span></code></pre>Facilities for printing exceptions.<br>
<hr width="100%">
<pre><span class="keyword">val</span> <a name="VALto_string"></a>to_string : <code class="type">exn -> string</code></pre><div class="info">
<code class="code"><span class="constructor">Printexc</span>.to_string e</code> returns a string representation of
the exception <code class="code">e</code>.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALprint"></a>print : <code class="type">('a -> 'b) -> 'a -> 'b</code></pre><div class="info">
<code class="code"><span class="constructor">Printexc</span>.print fn x</code> applies <code class="code">fn</code> to <code class="code">x</code> and returns the result.
If the evaluation of <code class="code">fn x</code> raises any exception, the
name of the exception is printed on standard error output,
and the exception is raised again.
The typical use is to catch and report exceptions that
escape a function application.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALcatch"></a>catch : <code class="type">('a -> 'b) -> 'a -> 'b</code></pre><div class="info">
<code class="code"><span class="constructor">Printexc</span>.catch fn x</code> is similar to <a href="Printexc.html#VALprint"><code class="code"><span class="constructor">Printexc</span>.print</code></a>, but
aborts the program with exit code 2 after printing the
uncaught exception. This function is deprecated: the runtime
system is now able to print uncaught exceptions as precisely
as <code class="code"><span class="constructor">Printexc</span>.catch</code> does. Moreover, calling <code class="code"><span class="constructor">Printexc</span>.catch</code>
makes it harder to track the location of the exception
using the debugger or the stack backtrace facility.
So, do not use <code class="code"><span class="constructor">Printexc</span>.catch</code> in new code.<br>
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distrib
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Mandriva
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2008.1
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x86_64
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media
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main-release
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by-pkgid
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27794d6aa78652b5b1aa72b8add7e5c8
>
files
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71
