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-rw-r--r--src/H5T.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/H5T.c b/src/H5T.c
index eca0132..ffa7bcb 100644
--- a/src/H5T.c
+++ b/src/H5T.c
@@ -5211,6 +5211,11 @@ H5T_set_loc(H5T_t *dt, H5F_t *f, H5T_loc_t loc)
/* Check if the field changed size */
if(old_size != memb_type->shared->size) {
+
+ /* Fail if the old_size is zero */
+ if (0 == old_size)
+ HGOTO_ERROR(H5E_DATATYPE, H5E_BADVALUE, FAIL, "old_size of zero would cause division by zero");
+
/* Adjust the size of the member */
dt->shared->u.compnd.memb[i].size = (dt->shared->u.compnd.memb[i].size*memb_type->shared->size)/old_size;