diff options
Diffstat (limited to 'libmpx/mpxwrap/mpx_wrappers.c')
| -rw-r--r-- | libmpx/mpxwrap/mpx_wrappers.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libmpx/mpxwrap/mpx_wrappers.c b/libmpx/mpxwrap/mpx_wrappers.c index d4c83ef484c..171a780311d 100644 --- a/libmpx/mpxwrap/mpx_wrappers.c +++ b/libmpx/mpxwrap/mpx_wrappers.c @@ -27,6 +27,7 @@ #include "string.h" #include <sys/mman.h> #include <stdint.h> +#include <assert.h> #include "mpxrt/mpxrt.h" void * @@ -418,7 +419,16 @@ move_bounds (void *dst, const void *src, size_t n) else elems_to_copy -= src_bt_index_end + 1; } - src_bd_index_end--; + /* Go to previous table but beware of overflow. + We should have copied all required element + in case src_bd_index_end is 0. */ + if (src_bd_index_end) + src_bd_index_end--; + else + { + assert (!elems_to_copy); + return; + } /* For each bounds table we check if there are valid pointers inside. If there are some, we copy table in pre-counted portions. */ for (; src_bd_index_end > src_bd_index; src_bd_index_end--) |