Cythonize GraphicMatroid

src/sage/matroids/graphic_matroid.pxd

@@ -0,0 +1,35 @@
+from .matroid cimport Matroid
+from sage.graphs.generic_graph_pyx cimport GenericGraph_pyx
+
+cdef class GraphicMatroid(Matroid):
+    cdef frozenset _groundset
+    cdef readonly GenericGraph_pyx _G
+    cdef dict _vertex_map
+    cdef dict _groundset_edge_map
+    cpdef groundset(self)
+    cpdef _rank(self, X)
+    cpdef _vertex_stars(self)
+    cpdef _minor(self, contractions, deletions)
+    cpdef _has_minor(self, N, bint certificate=*)
+    cpdef _corank(self, X)
+    cpdef _is_circuit(self, X)
+    cpdef _closure(self, X)
+    cpdef _max_independent(self, X)
+    cpdef _max_coindependent(self, X)
+    cpdef _circuit(self, X)
+    cpdef _coclosure(self, X)
+    cpdef _is_closed(self, X)
+    cpdef _is_isomorphic(self, other, certificate=*)
+    cpdef _isomorphism(self, other)
+    cpdef is_valid(self)
+    cpdef graph(self)
+    cpdef vertex_map(self)
+    cpdef groundset_to_edges(self, X)
+    cpdef _groundset_to_edges(self, X)
+    cpdef subgraph_from_set(self, X)
+    cpdef _subgraph_from_set(self, X)
+    cpdef graphic_extension(self, u, v=*, element=*)
+    cpdef graphic_coextension(self, u, v=*, X=*, element=*)
+    cpdef twist(self, X)
+    cpdef one_sum(self, X, u, v)
+    cpdef regular_matroid(self)