[1.12 Merge]Hdf5 1 12 warnings fixes (#1715)

* Warnings fixes (#1680)

* Clean stack size warnings in sio_engine (#1687)

* Fixes stack size warnings in tcoords.c (#1688)

* Address some warnings from casting away of const (#1684)

* Fixes stack size warnings in ntypes (#1695)

* Fixes stack size warnings in dtransform (#1696)

* Fixes stack size warnings in set_extent test (#1698)

* Be a bit safer with signed arithmetic, thus quieting some signed-overflow warnings from GCC (#1706)

* Avoid a signed overflow: check the range of `entry_ptr->age` before
increasing it instead of increasing it and then checking the range.
This quiets a GCC warning.

* Avoid the potential for signed overflow by rewriting expressions
`MAX(0, fwidth - n)` as `MAX(n, fwidth) - n` for various `n`.
This change quiets some GCC warnings.

* Change some local variables that cannot take sensible negative values
from signed to unsigned.  This quiets GCC warnings about potential
signed overflow.

* In a handful of instances, check the range of a signed integer before
increasing/decreasing it, just in case the increase/decrease overflows.
This quiets a handful of GCC signed-overflow warnings.

* Committing clang-format changes

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

* Fix object size warnings in cache.c test (#1701)

* 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

* Stop lying about H5S_t const-ness (#1209)

Hyperslabs can be reworked inside several H5S callbacks, making H5S_t
non-const in some places where it is marked const. This change switches
these incorrectly const H5S_t pointer parameters and variables to
non-const where appropriate.

* Fix a few warnings after recent H5S const-related changes (#1225)

* Adjustments for HDF5 1.12

Co-authored-by: Dana Robinson <43805+derobins@users.noreply.github.com>
Co-authored-by: David Young <dyoung@hdfgroup.org>
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/test/h5test.h b/test/h5test.h
index ac251d6..fc63e29 100644
--- a/test/h5test.h
+++ b/test/h5test.h
@@ -231,6 +231,15 @@ H5TEST_DLLVAR MPI_Info h5_io_info_g; /* MPI INFO object for IO */
 extern "C" {
 #endif
 
+/*
+ * Ugly hack to cast away const for freeing const-qualified pointers.
+ * Should only be used sparingly, where the alternative (like keeping
+ * an equivalent non-const pointer around) is far messier.
+ */
+#ifndef h5_free_const
+#define h5_free_const(mem) HDfree((void *)(uintptr_t)mem)
+#endif
+
 /* Generally useful testing routines */
 H5TEST_DLL void        h5_clean_files(const char *base_name[], hid_t fapl);
 H5TEST_DLL int         h5_cleanup(const char *base_name[], hid_t fapl);