New directory tree, with preprocessor/ inside interpretor/.

[Faustine.git] / 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 (file)
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();
+
+