On Tue, 2009-01-27 at 21:37 +0100, Florian Weimer wrote: > * Laurent GUERBY: > > > Just curious: is there a "portable" way to read from memory > > address zero in C code? "portable" here means likely to work > > on most compilers without exotic compile flags in 2009. > > No, C hasn't got a notion of addresses. The situation is likely to > get even more extreme, not less (in the sense that C continues to be > perceived as a low-level language, but current implementations really > aren't).
Are the current GCC optimization currently interfering with the following "portable" (following my definition) Ada? with System.Storage_Elements; procedure P0 is X : Integer; pragma Volatile (X); for X'Address use System.Storage_Elements.To_Address (0); begin X := 0; end P0; Laurent
