This is the mail archive of the libstdc++@gcc.gnu.org mailing list for the libstdc++ 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] | |
(trimming the Cc: list) On Fri, 16 Sep 2016, Jonathan Wakely wrote:
I missed 18.6.2/1 which is clear that we don't have to support invalid alignments passed to operator new, so I'm committing this.
Yes, I had missed it as well :-( Thanks for the patch. Random comments (we probably don't want to act on them):* gcc guesses that rem != 0, but I expect that to be an unusual case, __builtin_expect could help gcc make a different choice * there is also the version sz = (sz + (align - 1)) & ~(align - 1) to avoid a (very predictable so probably cheap) branch * this size adjustment could in principle cause an overflow that we will not detect
-- Marc Glisse
| Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
|---|---|---|
| Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |