#286-fix bug in next() for CWG_128_64

Done. To be validated.

Author: schmouk

Python3.10/PyRandLib/cwg128_64.py

@@ -120,7 +120,7 @@ def next(self) -> int:
         self._weyl = (self._weyl + self._s) & 0xffff_ffff_ffff_ffff
         self._state = (((self._state | 1) * (self._a >> 1)) ^ self._weyl) & 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff
         # returns the xored-shifted output value
-        return (self._state ^ (self._a >> 48)) & 0xffff_ffff_ffff_ffff
+        return self._state ^ (self._a >> 48)
 
 
     #-------------------------------------------------------------------------

Python3.11/PyRandLib/cwg128_64.py

@@ -120,7 +120,7 @@ def next(self) -> int:
         self._weyl = (self._weyl + self._s) & 0xffff_ffff_ffff_ffff
         self._state = (((self._state | 1) * (self._a >> 1)) ^ self._weyl) & 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff
         # returns the xored-shifted output value
-        return (self._state ^ (self._a >> 48)) & 0xffff_ffff_ffff_ffff
+        return self._state ^ (self._a >> 48)
 
 
     #-------------------------------------------------------------------------

Python3.12/PyRandLib/cwg128_64.py

@@ -121,7 +121,7 @@ def next(self) -> int:
         self._weyl = (self._weyl + self._s) & 0xffff_ffff_ffff_ffff
         self._state = (((self._state | 1) * (self._a >> 1)) ^ self._weyl) & 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff
         # returns the xored-shifted output value
-        return (self._state ^ (self._a >> 48)) & 0xffff_ffff_ffff_ffff
+        return self._state ^ (self._a >> 48)
 
 
     #-------------------------------------------------------------------------

Python3.13/PyRandLib/cwg128_64.py

@@ -121,7 +121,7 @@ def next(self) -> int:
         self._weyl = (self._weyl + self._s) & 0xffff_ffff_ffff_ffff
         self._state = (((self._state | 1) * (self._a >> 1)) ^ self._weyl) & 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff
         # returns the xored-shifted output value
-        return (self._state ^ (self._a >> 48)) & 0xffff_ffff_ffff_ffff
+        return self._state ^ (self._a >> 48)
 
 
     #-------------------------------------------------------------------------

Python3.14/PyRandLib/cwg128_64.py

@@ -121,7 +121,7 @@ def next(self) -> int:
         self._weyl = (self._weyl + self._s) & 0xffff_ffff_ffff_ffff
         self._state = (((self._state | 1) * (self._a >> 1)) ^ self._weyl) & 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff
         # returns the xored-shifted output value
-        return (self._state ^ (self._a >> 48)) & 0xffff_ffff_ffff_ffff
+        return self._state ^ (self._a >> 48)
 
 
     #-------------------------------------------------------------------------

Python3.6/PyRandLib/cwg128_64.py

@@ -120,7 +120,7 @@ def next(self) -> int:
         self._weyl = (self._weyl + self._s) & 0xffff_ffff_ffff_ffff
         self._state = (((self._state | 1) * (self._a >> 1)) ^ self._weyl) & 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff
         # returns the xored-shifted output value
-        return (self._state ^ (self._a >> 48)) & 0xffff_ffff_ffff_ffff
+        return self._state ^ (self._a >> 48)
 
 
     #-------------------------------------------------------------------------

Python3.9/PyRandLib/cwg128_64.py

@@ -120,7 +120,7 @@ def next(self) -> int:
         self._weyl = (self._weyl + self._s) & 0xffff_ffff_ffff_ffff
         self._state = (((self._state | 1) * (self._a >> 1)) ^ self._weyl) & 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff
         # returns the xored-shifted output value
-        return (self._state ^ (self._a >> 48)) & 0xffff_ffff_ffff_ffff
+        return self._state ^ (self._a >> 48)
 
 
     #-------------------------------------------------------------------------