[Bug c/78973] New: [7 Regression] warning: ‘memcpy’: specified size between 18446744071562067968 and 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78973

            Bug ID: 78973
           Summary: [7 Regression] warning: ‘memcpy’: specified size
                    between 18446744071562067968 and 18446744073709551615
                    exceeds maximum object size 9223372036854775807
                    [-Wstringop-overflow=]
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: msebor at gcc dot gnu.org
  Target Milestone: ---

The -Wstringop-overflow warning prints huge decimal numbers, e.g.:

 warning: ‘memcpy’: specified size between 18446744071562067968 and
18446744073709551615 exceeds maximum object size 9223372036854775807
[-Wstringop-overflow=]

It would be better if they were printed in hex, or by using their symbolic
name.

...between 0xFFFFFFFF80000000 and 0xFFFFFFFFFFFFFFFF ... size
0x7FFFFFFFFFFFFFFF


...between 0xFFFFFFFF80000000 and INT_MAX ... size INT_MAX/2