> On Nov 17, 2017, at 7:39 PM, Jeff Law <l...@redhat.com> wrote: > >>> >> >> thanks for the info, Martin. >> >> In my case, it’s the size of “100” cannot be collected in the >> MINMAXLEN[1] for the string “s”. >> >> I need to make sure that the size of variable string s is larger than >> the size of constant string “abc” to guarantee the safety of the >> transformation. >> >> currently, “get_range_strlen” cannot identify the simple VAR_DECL with >> array_type to determine the maximum size of the string. > It sounds more like you want the object_size interfaces. See > tree-object-size.[ch]
As I mentioned in the other email, I tried the interface of object_size, i.e, “compute_builtin_object_size” to see whether it can provide me good info on several simple examples, at that time, I didn’t see that it can provide good info for very simple cases, so I switched to use “get_range_strlen” and modified it to serve my purpose. I will double check on this. Qing > Jeff
