On 22/07/2015 01:21, Jeffrey Walton wrote: >>> For the stragglers, I don't think its a stretch to ask C99 in 2015. >> Visual Studio is often used on Windows, and it is not C99. >> > Oh my, I was not aware it was still struggling for C99 :) I guess > Microsoft is still putting their energies into the "one-size, tablet > interface known as Windows 8, fits all, even on desktops without a > touchscreen". > > On the good side, MSVC does not need to be 100% compliant. It just > needs to support initialization at time of declaration. That > particular feature works. Isn't that a C89 (or maybe even K&R) feature? There is another problem though: Blindly initializing every variable with dummy values (because the correct value comes from one or more if() branches), only achieves two things, both bad: - It hides correct warnings in case one of those if() branches forgets to set the variable, before it is read. - It potentially confuses less-than-halting-problem- solving optimizers to needlessly generate code that allocates and initializes the variable because they cannot detect (within their compile time resource limits) that the dummy value is (hopefully) never used. The second problem is almost guaranteed to happen on any compiler/option combination that would otherwise falsely warn about the variable being maybe- uninitialized. This is because most compilers generate that warning as a side effect of the optimizer trying to figure out if the garbage or dummy value will be used by the code. Enjoy Jakob -- Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com Transformervej 29, 2860 S?borg, Denmark. Direct +45 31 13 16 10 This public discussion message is non-binding and may contain errors. WiseMo - Remote Service Management for PCs, Phones and Embedded -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mta.openssl.org/pipermail/openssl-users/attachments/20150722/914b967f/attachment.html>
