void VisitFunction( const SymbolicFunction &v)
{
if (target.GetValType() == VAL_FUNCTION && cur == target)
result = true;
else {
for (SymbolicFunction::const_iterator p = v.args_begin();
p != v.args_end(); ++p) {
SymbolicVal tmp = *p;
cur = tmp;
cur.Visit(this);
if ( result)
break;
}
}
}
void VisitExpr( const SymbolicExpr &v)
{
if (target.GetValType() == VAL_EXPR && cur == target)
result = true;
else {
for (SymbolicExpr::OpdIterator iter = v.GetOpdIterator();
!iter.ReachEnd(); iter.Advance()) {
SymbolicVal tmp = v.Term2Val(iter.Current());
cur = tmp;
cur.Visit(this);
if (result)
break;
}
}
}
void Default0( const SymbolicVal &v1, const SymbolicVal &v2)
{
Default1(v1,v2);
if (DebugCompareVal())
std::cerr << " in CompareOperator::Default \n";
if (result == REL_UNKNOWN) {
int tmp = comparetime;
SymbolicVal diff = v1 - v2;
comparetime = tmp;
if (diff.GetValType() == VAL_CONST) {
int diffval = atoi( diff.toString().c_str());
if (diffval < 0)
result = REL_LT;
else if (diffval > 0)
result = REL_GT;
else
result = REL_EQ;
}
else if (func != 0) {
int tmp = comparetime;
SymbolicBound b1 = GetValBound(v1,*func), b2 = GetValBound(v2,*func);
comparetime = tmp;
CompareRel ge1 = (b1.lb != v1)? CompareValHelp(b1.lb,v2,func) : REL_UNKNOWN;
CompareRel le2 = (b2.ub != v2)? CompareValHelp(b2.ub,v1,func) : REL_UNKNOWN;
CompareRel le1 = (b1.ub != v1)? CompareValHelp(b1.ub,v2,func) : REL_UNKNOWN;
CompareRel ge2 = (b2.lb != v2)? CompareValHelp(b2.lb,v1,func) : REL_UNKNOWN;
if (CountGT(ge1) || CountLT(le2))
result = REL_GT;
else if (CountGE(ge1) || CountLE(le2))
result = REL_GE;
else if (CountLT(le1) || CountGT(ge2))
result = REL_LT;
else if (CountLE(le1) || CountGE(ge2))
result = REL_LE;
}
}
}