X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/c7f552fd8888da2f0d8cfb228fe0f28d3df3a12c..b4b6f2ea75b9f0f3ca918f5b84016610bf7a4d4f:/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/rintprim.cpp

diff --git a/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/rintprim.cpp b/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/rintprim.cpp
new file mode 100644
index 0000000..b3c148d
--- /dev/null
+++ b/interpretor/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();
+
+