commit 54e2fff2e1e3b2b4c317651bbbf1aadc27b1e378
author Howard Hinnant <hhinnant@apple.com> Tue Jan 22 17:26:08 2013 +0000
committer Howard Hinnant <hhinnant@apple.com> Tue Jan 22 17:26:08 2013 +0000
tree 13f2511fcc05b2540c22ac50947bb82250b49109
parent e0f0bfb5e6348e9d912809cd882c4076bd738fa8

Saleem Abdulrasool: If errno is defined as volatile int, the qualifier differences can cause
template typename deductions on swap<> (used in string.cpp).  Use
decltype(errno) to replicate the type and qualifier information for holding the
errno value.  Because errno is expected to be assignable, there is no need to
use typename std::remove_const<decltype(errno)>::type to hold the value.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@173172 91177308-0d34-0410-b5e6-96231b3b80d8