Add primitive binary BCH codes

docs/pages/galois.rst

@@ -102,6 +102,18 @@ Linear Sequences
 
    berlekamp_massey
 
+Forward Error Correcting Codes
+------------------------------
+.. rubric::
+.. autosummary::
+   :template: class.rst
+   :toctree:
+
+   BCH
+   bch_valid_codes
+   bch_generator_poly
+   bch_generator_matrix
+
 Finite Groups
 -------------
 .. rubric::

galois/__init__.py

@@ -4,6 +4,7 @@
 from .version import __version__
 
 # Subpackages
+from .code import *
 from .group import *
 from .field import *
 

galois/array.py

@@ -200,6 +200,9 @@ def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):  # pylint: disable=
             raise NotImplementedError(f"The numpy ufunc '{ufunc.__name__}' is not supported on {type(self).name} arrays. If you believe this ufunc should be supported, please submit a GitHub issue at https://github.com/mhostetter/galois/issues.")
 
         else:
+            if ufunc in [np.bitwise_and, np.bitwise_or, np.bitwise_xor] and method not in ["reduce", "accumulate", "at", "reduceat"]:
+                kwargs["casting"] = "unsafe"
+
             inputs, kwargs = type(self)._view_inputs_as_ndarray(inputs, kwargs)
             output = super().__array_ufunc__(ufunc, method, *inputs, **kwargs)  # pylint: disable=no-member
 

galois/code/__init__.py

@@ -0,0 +1,5 @@
+"""
+A subpackage containing forward error correction codes.
+"""
+from .bch import *
+from .bch_functions import *