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-rw-r--r--interface.ccl6
1 files changed, 6 insertions, 0 deletions
diff --git a/interface.ccl b/interface.ccl
index 01b2981..7012316 100644
--- a/interface.ccl
+++ b/interface.ccl
@@ -8,3 +8,9 @@ inherits: Grid IO
# USES INCLUDE HEADER: Server.hpp
# USES INCLUDE HEADER: CactusCommands.hpp
# USES INCLUDE HEADER: http_GHExtensions.hpp # no connection to HTTP yet
+
+CCTK_INT FUNCTION Coord_GroupSystem \
+ (CCTK_POINTER_TO_CONST IN GH, \
+ CCTK_STRING IN groupname)
+
+REQUIRES FUNCTION Coord_GroupSystem