- u -

• UnaryUnion() : OGRGeometry
• Union() : GNMGenericLayer , OGRGeometry , OGRLayer
• UnionCascaded() : OGRGeometry
• UnlockBuffer() : GDALAsyncReader
• UnMarkSuppressOnClose() : GDALDataset
• Unseal() : OGRFeatureDefn , OGRFieldDefn , OGRGeomFieldDefn
• Unset() : OGRFeature::FieldValue
• UnsetField() : OGRFeature
• Update() : GNMGenericLayer , OGRLayer
• UpdateFeature() : OGRLayer
• UpdateFieldDomain() : GDALDataset
• UpdateRelationship() : GDALDataset
• UpsertFeature() : OGRLayer
• usage() : GDALArgumentParser