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Follow up attempt to fix MSVC SFINAE build error

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This commit is contained in:
mandreyel 2018-11-07 11:40:37 +01:00
parent 0da3002815
commit 261acc6bc6
2 changed files with 23 additions and 11 deletions
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19
include/mio/detail/mmap.ipp
View File

@ -418,6 +418,25 @@ void basic_mmap<AccessMode, ByteT>::swap(basic_mmap& other)
}
}
template<access_mode AccessMode, typename ByteT>
template<access_mode A>
typename std::enable_if<A == access_mode::write, void>::type
basic_mmap<AccessMode, ByteT>::conditional_sync()
{
// This is invoked from the destructor, so not much we can do about
// failures here.
std::error_code ec;
sync(ec);
}
template<access_mode AccessMode, typename ByteT>
template<access_mode A>
typename std::enable_if<A == access_mode::read, void>::type
basic_mmap<AccessMode, ByteT>::conditional_sync()
{
// noop
}
template<access_mode AccessMode, typename ByteT>
bool operator==(const basic_mmap<AccessMode, ByteT>& a,
const basic_mmap<AccessMode, ByteT>& b)

15
include/mio/mmap.hpp
View File

@ -370,18 +370,11 @@ private:
* if it's `read`, but since the destructor cannot be templated, we need to
* do SFINAE in a dedicated function, where one syncs and the other is a noop.
*/
template<access_mode A = AccessMode,
typename = typename std::enable_if<A == access_mode::write>::type>
void conditional_sync()
{
// This is invoked from the destructor, so not much we can do about
// failures here.
std::error_code ec;
sync(ec);
}
template<access_mode A = AccessMode>
typename std::enable_if<A == access_mode::read, void>::type conditional_sync() {}
typename std::enable_if<A == access_mode::write, void>::type
conditional_sync();
template<access_mode A = AccessMode>
typename std::enable_if<A == access_mode::read, void>::type conditional_sync();
};
template<access_mode AccessMode, typename ByteT>