Add a proj_cleanup() function to free global resources, typically at process termination

1 files changed, 7 insertions, 0 deletions

diff --git a/src/malloc.cpp b/src/malloc.cpp
index 817f8f20..393437e3 100644
--- a/src/malloc.cpp
+++ b/src/malloc.cpp
@@ -255,3 +255,10 @@ PJ *pj_default_destructor (PJ *P, int errlev) {   /* Destructor */
     delete P;
     return nullptr;
 }
+
+/*****************************************************************************/
+void proj_cleanup() {
+/*****************************************************************************/
+  pj_clear_initcache();
+  pj_deallocate_grids();
+}