Add util function: free_pointer_array

This function iterates through each element of pointer array, frees
its memory, and finally free the array itself.

1 files changed, 1 insertions, 0 deletions

diff --git a/mem.h b/mem.h
index 4b9b095..bcc112f 100644
--- a/mem.h
+++ b/mem.h
@@ -5,5 +5,6 @@
 
 void *xmalloc(size_t size);
 void *xrealloc(void *p, size_t size);
+void free_pointer_array(void **array, size_t len);
 
 #endif /* SS_MEM_H */