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+# Interface definition for thorn SymBase
+# $Header$
+
+IMPLEMENTS: SymBase
+
+
+
+# Register a symmetry, and query the symmetry name/handle mapping:
+
+CCTK_INT FUNCTION SymmetryRegister (CCTK_STRING IN sym_name)
+PROVIDES FUNCTION SymmetryRegister \
+     WITH SymBase_SymmetryRegister \
+     LANGUAGE C
+
+CCTK_INT FUNCTION SymmetryHandleOfName (CCTK_STRING IN sym_name)
+PROVIDES FUNCTION SymmetryHandleOfName \
+     WITH SymBase_SymmetryHandleOfName \
+     LANGUAGE C
+
+CCTK_POINTER_TO_CONST FUNCTION SymmetryNameOfHandle (CCTK_INT IN sym_handle)
+PROVIDES FUNCTION SymmetryNameOfHandle \
+     WITH SymBase_SymmetryNameOfHandle \
+     LANGUAGE C
+
+
+
+# Register a symmetry condition for a face:
+
+CCTK_INT FUNCTION                                  \
+    SymmetryRegisterGrid                           \
+         (CCTK_POINTER IN cctkGH,                  \
+          CCTK_INT IN sym_handle,                  \
+          CCTK_INT IN ARRAY which_faces,           \ # array [N_FACES]
+          CCTK_INT IN ARRAY symmetry_zone_width)     # array [N_FACES]
+PROVIDES FUNCTION SymmetryRegisterGrid \
+     WITH SymBase_SymmetryRegisterGrid \
+     LANGUAGE C
+
+CCTK_INT FUNCTION                                  \
+    SymmetryRegisterGI                             \
+        (CCTK_POINTER IN cctkGH,                   \
+         CCTK_INT IN sym_handle,                   \
+         CCTK_INT IN ARRAY which_faces,            \ # array [N_FACES]
+         CCTK_INT IN ARRAY symmetry_zone_width,    \ # array [N_FACES]
+         CCTK_INT IN group_index)
+PROVIDES FUNCTION SymmetryRegisterGI \
+     WITH SymBase_SymmetryRegisterGI \
+     LANGUAGE C
+
+CCTK_INT FUNCTION                                  \
+    SymmetryRegisterGN                             \
+        (CCTK_POINTER IN cctkGH,                   \
+         CCTK_INT IN sym_handle,                   \
+         CCTK_INT IN ARRAY which_faces,            \ # array [N_FACES]
+         CCTK_INT IN ARRAY symmetry_zone_width,    \ # array [N_FACES]
+         CCTK_STRING IN group_name)
+PROVIDES FUNCTION SymmetryRegisterGN \
+     WITH SymBase_SymmetryRegisterGN \
+     LANGUAGE C
+
+
+
+# Get the symmetry table handle for a grid or grid array:
+
+CCTK_INT FUNCTION \
+    SymmetryTableHandleForGrid (CCTK_POINTER_TO_CONST IN cctkGH)
+PROVIDES FUNCTION SymmetryTableHandleForGrid \
+     WITH SymBase_SymmetryTableHandleForGrid \
+     LANGUAGE C
+
+CCTK_INT FUNCTION                          \
+    SymmetryTableHandleForGI               \
+        (CCTK_POINTER_TO_CONST IN cctkGH,  \
+         CCTK_INT IN group_index)
+PROVIDES FUNCTION SymmetryTableHandleForGI \
+     WITH SymBase_SymmetryTableHandleForGI \
+     LANGUAGE C
+
+CCTK_INT FUNCTION                          \
+    SymmetryTableHandleForGN               \
+        (CCTK_POINTER_TO_CONST IN cctkGH,  \
+         CCTK_STRING IN group_name)
+PROVIDES FUNCTION SymmetryTableHandleForGN \
+     WITH SymBase_SymmetryTableHandleForGN \
+     LANGUAGE C