Strange Behavior when calling a C function by a plpgsql stored prcedure

In some plpgsql method, I call some C function with a optional parameters.<br /><br /> This is the signature of my
function:<br /><br /><i>extern "C" My_Mem_Macro_Parser_Integer myMethod( int nbFields, int toto = -1)<br /> {<br />
blablabla.....<br /> return integer;<br /> }<br /></i><br /><br /> When I call this function with the second
parameters,there's no problems.<br /><br /> But if I call without toto :<br /> plpgsql:<br /><br /><i>CREATE FUNCTION
CallMymethodWithoutToto(     INTEGER        -- [IN] nb Field<br /> )<br /> RETURNS INTEGER AS '<br />     
'path2MyLib/MyLib.so','myMethod'<br /> LANGUAGE 'C';</i><br /><br /> Appear a strange Behavior :<br /> I'm explain,<br
/>in myC function, I switch the value of toto, try to find "-1".<br /> But I NEVER have "-1".<br /><br /> I this case I
alwayshave "8" in toto integer !!!!!!<br /><br /><br /><br /><pre class="moz-signature" cols="$mailwrapcol">--  
Alban Médici
R&D Software Engineer
tel: +33 (0)2 31 46 35 80 (+005)
--------------------------------
<a class="moz-txt-link-freetext" href="http://www.netcentrex.net">http://www.netcentrex.net</a>
<a class="moz-txt-link-abbreviated" href="mailto:amedici@fr.netcentrex.net">amedici@fr.netcentrex.net</a></pre>