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

diff --git a/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/absprim.cpp b/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/absprim.cpp
new file mode 100644
index 0000000..2b54eea
--- /dev/null
+++ b/interpretor/preprocessor/faust-0.9.47mr3/compiler/extended/absprim.cpp
@@ -0,0 +1,79 @@
+#include "xtended.hh"
+#include "Text.hh"
+#include <math.h>
+#include "sigtyperules.hh"
+
+#include "floats.hh"
+
+class AbsPrim : public xtended
+{
+
+ public:
+
+ 	AbsPrim() : xtended("abs") {}
+
+	virtual unsigned int 	arity () { return 1; }
+
+	virtual bool	needCache ()	{ return true; }
+
+	virtual Type 	infereSigType (const vector<Type>& types)
+	{
+		assert (types.size() == arity());
+		Type t = types[0];
+		return castInterval(t, abs(t->getInterval()));
+		return t;
+	}
+
+	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)
+	{
+		double f; int i;
+
+		assert (args.size() == arity());
+
+		if (isDouble(args[0]->node(),&f)) {
+			return tree(fabs(f));
+
+		} else if (isInt(args[0]->node(),&i)) {
+			return tree(abs(i));
+
+		} 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());
+
+		Type t = infereSigType(types);
+		if (t->nature() == kReal) {
+            return subst("fabs$1($0)", args[0], isuffix());
+		} else {
+			return subst("abs($0)", args[0]);
+		}
+	}
+	
+	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("\\left\\lvert{$0}\\right\\rvert", args[0]);
+	}
+};
+
+
+xtended* gAbsPrim = new AbsPrim();
+
+