New solver/optal cp

cpmpy/exceptions.py

@@ -42,4 +42,4 @@ class GCSVerificationException(CPMpyException):
 
 class TransformationNotImplementedError(CPMpyException):
     '''Raised when a transformation is not implemented for a certain expression'''
-    pass
+    pass

cpmpy/expressions/utils.py

@@ -61,6 +61,16 @@ def is_num(arg):
     """
     return isinstance(arg, (bool, np.bool_, cp.BoolVal, int, np.integer, float, np.floating))
 
+def is_np_int(arg):
+    """ is it an numpy int?
+    """
+    return isinstance(arg, np.integer)
+
+def is_np_bool(arg):
+    """ is it a numpy bool?
+    """
+    return isinstance(arg, np.bool_)
+
 
 def is_false_cst(arg):
     """ is the argument the constant False (can be of type bool, np.bool and BoolVal)

cpmpy/solvers/__init__.py

@@ -42,6 +42,7 @@
     pumpkin
     cplex
     hexaly
+    optalcp
     rc2
     scip
 
@@ -78,6 +79,7 @@
 from .pumpkin import CPM_pumpkin
 from .cplex import CPM_cplex
 from .hexaly import CPM_hexaly
+from .optalcp import CPM_optalcp
 from .rc2 import CPM_rc2
 from .scip import CPM_scip
 
@@ -90,6 +92,7 @@
     "CPM_gurobi",
     "CPM_hexaly",
     "CPM_minizinc",
+    "CPM_optalcp",
     "CPM_ortools",
     "CPM_pindakaas",
     "CPM_pumpkin",