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#include "xtended.hh"
#include "Text.hh"
#include <math.h>
#include "floats.hh"
class AtanPrim : public xtended
{
public:
AtanPrim() : xtended("atan") {}
virtual unsigned int arity () { return 1; }
virtual bool needCache () { return true; }
virtual Type infereSigType (const vector<Type>& args)
{
assert (args.size() == 1);
return floatCast(args[0]);
}
virtual void sigVisit (Tree sig, sigvisitor* visitor) {}
virtual int infereSigOrder (const vector<int>& args) {
return args[0];
}
virtual Tree computeSigOutput (const vector<Tree>& args) {
num n;
if (isNum(args[0],n)) {
return tree(atan(double(n)));
} else {
return tree(symbol(), args[0]);
}
}
virtual string generateCode (Klass* klass, const vector<string>& args, const vector<Type>& types)
{
assert (args.size() == arity());
assert (types.size() == arity());
return subst("atan$1($0)", args[0], isuffix());
}
virtual string generateLateq (Lateq* lateq, const vector<string>& args, const vector<Type>& types)
{
assert (args.size() == arity());
assert (types.size() == arity());
return subst("\\arctan\\left($0\\right)", args[0]);
}
};
xtended* gAtanPrim = new AtanPrim();
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