Rename interpretor to interpreter.

[Faustine.git] / interpreter / preprocessor / faust-0.9.47mr3 / compiler / extended / rintprim.cpp

diff --git a/interpreter/preprocessor/faust-0.9.47mr3/compiler/extended/rintprim.cpp b/interpreter/preprocessor/faust-0.9.47mr3/compiler/extended/rintprim.cpp
new file mode 100644 (file)
index 0000000..b3c148d
--- /dev/null
+++ b/interpreter/preprocessor/faust-0.9.47mr3/compiler/extended/rintprim.cpp
@@ -0,0 +1,79 @@
+#include "xtended.hh"
+#include "compatibility.hh"
+#include "Text.hh"
+#include <math.h>
+
+#include "floats.hh"
+
+#if defined(WIN32) && ! defined(__MINGW32__) 
+/* missing on Windows : see http://bugs.mysql.com/bug.php?id=15936 */
+inline double rint(double nr)
+{
+    double f = floor(nr);
+    double c = ceil(nr);
+    return (((c -nr) >= (nr - f)) ? f : c);
+}
+#endif
+
+class RintPrim : public xtended
+{
+
+ public:
+ 
+       RintPrim() : xtended("rint") {}
+       
+       virtual unsigned int arity () { return 1; }
+       
+       virtual bool    needCache ()    { return true; }
+       
+       virtual Type    infereSigType (const vector<Type>& args)
+       {
+               assert (args.size() == arity());
+               interval i = args[0]->getInterval();
+               if (i.valid) {
+                       return castInterval(floatCast(args[0]), interval(rint(i.lo), rint(i.hi)));
+               } else {
+                       return floatCast(args[0]);
+               }
+       }
+       
+       virtual void    sigVisit (Tree sig, sigvisitor* visitor) {}     
+       
+       virtual int infereSigOrder (const vector<int>& args) {
+               assert (args.size() == arity());
+               return args[0];
+       }
+
+       
+       virtual Tree    computeSigOutput (const vector<Tree>& args) {
+               num n;
+               assert (args.size() == arity());
+               if (isNum(args[0],n)) {
+                       return tree(rint(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("rint$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("\\left[ {$0} \\right]", args[0]);
+       }
+       
+};
+
+
+xtended* gRintPrim = new RintPrim();
+
+