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#include "xtended.hh"
#include "Text.hh"
#include <math.h>
#include "sigtyperules.hh"
#include "floats.hh"
class MinPrim : public xtended
{
public:
MinPrim() : xtended("min") {}
virtual unsigned int arity () { return 2; }
virtual bool needCache () { return true; }
virtual Type infereSigType (const vector<Type>& types)
{
assert (types.size() == arity());
interval i = types[0]->getInterval();
interval j = types[1]->getInterval();
return castInterval(types[0]|types[1], min(i,j));
}
virtual void sigVisit (Tree sig, sigvisitor* visitor) {}
virtual int infereSigOrder (const vector<int>& args)
{
assert (args.size() == arity());
return max(args[0], args[1]);
}
virtual Tree computeSigOutput (const vector<Tree>& args)
{
double f,g; int i,j;
assert (args.size() == arity());
if (isDouble(args[0]->node(),&f)) {
if (isDouble(args[1]->node(), &g)) {
return tree(min(f, g));
} else if (isInt(args[1]->node(),&j)) {
return tree(min(f, double(j)));
} else {
return tree(symbol(), args[0], args[1]);
}
} else if (isInt(args[0]->node(),&i)) {
if (isDouble(args[1]->node(), &g)) {
return tree(min(double(i), g));
} else if (isInt(args[1]->node(),&j)) {
return tree(min(i, j));
} else {
return tree(symbol(), args[0], args[1]);
}
} else {
return tree(symbol(), args[0], args[1]);
}
}
virtual string generateCode (Klass* klass, const vector<string>& args, const vector<Type>& types)
{
assert (args.size() == arity());
assert (types.size() == arity());
Type t = infereSigType(types);
if (t->nature() == kReal) {
return subst("min($0, $1)", args[0], args[1]);
} else {
return subst("min($0, $1)", args[0], args[1]);
}
}
virtual string generateLateq (Lateq* lateq, const vector<string>& args, const vector<Type>& types)
{
assert (args.size() == arity());
assert (types.size() == arity());
Type t = infereSigType(types);
return subst("\\min\\left( $0, $1 \\right)", args[0], args[1]);
}
};
xtended* gMinPrim = new MinPrim();
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