Function gaiaIsRing

pub unsafe extern "C" fn gaiaIsRing(line: gaiaLinestringPtr) -> c_int

Checks if a Linestring object represents an OGC Ring Geometry

\param line pointer to Geometry object.

\return 0 if false; any other value if true

\sa gaiaIsRing_r, gaiaIsSimple, gaiaIsClosed, gaiaIsValid

\note not reentrant and thread unsafe.

\remark \b GEOS support required.