Value: do { \
if ( ! (be)->cb || ! (be)->cb->method ) \
lwerror("Callback " # method " not registered by backend"); \
} while (0)
Definition at line 132 of file lwgeom_topo.c.
132 { \
133 if ( ! (be)->cb || ! (be)->cb->method ) \
134 lwerror("Callback " # method " not registered by backend"); \
135} while (0)