New directory tree, with preprocessor/ inside interpretor/.

[Faustine.git] / interpretor / preprocessor / faust-0.9.47mr3 / compiler / extended / atan2prim.cpp

diff --git a/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/atan2prim.cpp b/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/atan2prim.cpp
new file mode 100644 (file)
index 0000000..d9dc7cb
--- /dev/null
+++ b/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/atan2prim.cpp
@@ -0,0 +1,63 @@
+#include "xtended.hh"
+#include "Text.hh"
+#include <math.h>
+
+#include "floats.hh"
+
+class Atan2Prim : public xtended
+{
+
+ public:
+ 
+       Atan2Prim() : xtended("atantwo") {}
+       
+       virtual unsigned int    arity () { return 2; }
+       
+       virtual bool    needCache ()    { return true; }
+       
+       virtual Type    infereSigType (const vector<Type>& args)
+       {
+               assert (args.size() == 2);
+               return floatCast(args[0]|args[1]);
+       }
+       
+       virtual void    sigVisit (Tree sig, sigvisitor* visitor) {}     
+       
+       virtual int infereSigOrder (const vector<int>& args) {
+               return max(args[0], args[1]);
+       }
+
+       
+       virtual Tree    computeSigOutput (const vector<Tree>& args) 
+       {
+               assert (args.size() == 2);
+               num n,m;
+               if (isNum(args[0],n) && isNum(args[1],m)) {
+                       return tree(atan2(double(n), double(m)));
+               } 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());
+               
+        return subst("atan2$2($0,$1)", args[0], args[1], 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\\frac{$0}{$1}", args[0], args[1]);
+       }
+       
+};
+
+
+xtended* gAtan2Prim = new Atan2Prim();
+
+