https://llvm.org/bugs/show_bug.cgi?id=31448
Bug ID: 31448
Summary: libc++ fails to compile on systems without
posix_memalign
Product: libc++
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: jerem...@apple.com
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
Classification: Unclassified
On older systems without posix_memalign, libcxx now fails to compile with:
new.cpp:73:14: error: no member named 'posix_memalign' in the global namespace
while (::posix_memalign(&p, static_cast<size_t>(alignment), size) != 0)
~~^
1 error generated.
This regressed in 9acbffa370bd03e4e0ed742110e4c780b99c28ac with:
commit 9acbffa370bd03e4e0ed742110e4c780b99c28ac
Author: Eric Fiselier <e...@efcs.ca>
Date: Fri Oct 14 06:46:30 2016 +0000
Implement P0035R4 -- Add C++17 aligned allocation functions
Summary:
This patch implements the library side of P0035R4. The implementation is
thanks to @rsmith.
In addition to the C++17 implementation, the library implementation can be
explicitly turned on using `-faligned-allocation` in all dialects.
Reviewers: mclow.lists, rsmith
Subscribers: rsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D25591
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@284206
91177308-0d34-0410-b5e6-96231b3b80d8
Can we test for the existence of posix_memalign
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