Fix some const cast and stack/static object size warnings (#1700)

* Fix various warnings

* Move HDfree_const to H5private.h for wider use

* Print output from all ranks in parallel tests on allocation failure

* Move const pointer freeing macro to h5test.h for now

1 files changed, 8 insertions, 8 deletions

diff --git a/test/vfd.c b/test/vfd.c
index b1b176a..b3bbf43 100644
--- a/test/vfd.c
+++ b/test/vfd.c
@@ -4112,7 +4112,7 @@ test_vector_io__setup_v(uint32_t count, H5FD_mem_t types[], haddr_t addrs[], siz
 
             if (write_bufs[i]) {
 
-                HDfree((void *)write_bufs[i]);
+                h5_free_const(write_bufs[i]);
                 write_bufs[i] = NULL;
             }
 
@@ -4256,7 +4256,7 @@ test_vector_io__setup_fixed_size_v(uint32_t count, H5FD_mem_t types[], haddr_t a
 
             if (write_bufs[i]) {
 
-                HDfree((void *)write_bufs[i]);
+                h5_free_const(write_bufs[i]);
                 write_bufs[i] = NULL;
             }
 
@@ -4922,13 +4922,13 @@ test_vector_io(const char *vfd_name)
 
     for (i = 0; i < count; i++) {
 
-        HDfree((void *)write_bufs_0[i]);
+        h5_free_const(write_bufs_0[i]);
         write_bufs_0[i] = NULL;
 
-        HDfree((void *)write_bufs_1[i]);
+        h5_free_const(write_bufs_1[i]);
         write_bufs_1[i] = NULL;
 
-        HDfree((void *)write_bufs_2[i]);
+        h5_free_const(write_bufs_2[i]);
         write_bufs_2[i] = NULL;
 
         HDfree(read_bufs_0[i]);
@@ -4940,13 +4940,13 @@ test_vector_io(const char *vfd_name)
         HDfree(read_bufs_2[i]);
         read_bufs_2[i] = NULL;
 
-        HDfree((void *)f_write_bufs_0[i]);
+        h5_free_const(f_write_bufs_0[i]);
         f_write_bufs_0[i] = NULL;
 
-        HDfree((void *)f_write_bufs_1[i]);
+        h5_free_const(f_write_bufs_1[i]);
         f_write_bufs_1[i] = NULL;
 
-        HDfree((void *)f_write_bufs_2[i]);
+        h5_free_const(f_write_bufs_2[i]);
         f_write_bufs_2[i] = NULL;
 
         HDfree(f_read_bufs_0[i]);