This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH] __builtin_object_size improvements


Jakub Jelinek wrote:
The patch below implements both of these, with the exception that if
the field is at the end of the structure and base is INDIRECT_REF,
__bos (x, 1) behaves like __bos (x, 0), because there is tons of code out
there that uses arrays at the end of a structure instead of flexible array
members and I wouldn't like to break code like:
struct A { int i; char c[1]; };
struct A *p = malloc (sizeof (*p) + strlen ("abcde"));
strcpy (p->c, "abcde");

I'd prefer that this exception only be made if that last array length is exactly 1, not any trailing array.



r~



Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]