[−][src]Function spatialite_sys::gaiaIsRing_r
pub unsafe extern "C" fn gaiaIsRing_r(
p_cache: *const c_void,
line: gaiaLinestringPtr
) -> c_int
Checks if a Linestring object represents an OGC Ring Geometry
\param p_cache a memory pointer returned by spatialite_alloc_connection() \param line pointer to Geometry object.
\return 0 if false; any other value if true
\sa gaiaIsRing, gaiaIsSimple, gaiaIsClosed, gaiaIsValid
\note reentrant and thread-safe.
\remark \b GEOS support required.