------- Additional Comments From gdr at integrable-solutions dot net 2005-07-15 10:26 ------- Subject: Re: pointer +- integer is never NULL
"mattias at virtutech dot se" <[EMAIL PROTECTED]> writes: | ------- Additional Comments From mattias at virtutech dot se 2005-07-15 09:12 ------- | It could be made an option so the user can tell GCC whether to make | standard-conforming code go as fast as possible or if arithmetic on null | pointers (as a gcc extension, say) is needed. -fnull-pointer-arith? | | (In reply to comment #13) | > Scanning a region of memory starting from zero, is not | > exactly the kind of thing never done in practice. | | True, but that sort of code is already in danger, since GCC assumes that in | | x = *p; | if (!p) shout(); | | the condition is never true (even if it is possible to read from location 0). True but that is not the kind of codes I'm talking about. -- Gaby -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22485
