id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc
26	Implicit conversion from zero_t do not work.	pabuhr		"{{{
struct foo;
void ?{}( foo **, zero_t z ) {}
int fred() {
    foo * h;
    if (h) {} 
}
}}}
should convert to: 
{{{
if (h != ?{}(temp, 0), temp ) { ... }
}}}
Instead converts to:
{{{
if ( ((int )(__h__P4sfoo_2!=((struct foo *)0))) ) {}
}}}
"	defect	new	major	cfa-cc	1.0