47#pragma GCC system_header
52namespace std _GLIBCXX_VISIBILITY(default)
54_GLIBCXX_BEGIN_NAMESPACE_VERSION
72#if __cplusplus >= 201103L
74 template<
typename,
typename>
83_GLIBCXX_END_NAMESPACE_VERSION
ISO C++ entities toplevel namespace is std.
Uniform interface to all allocator types.
The standard allocator, as per C++03 [20.4.1].
Declare uses_allocator so it can be specialized in <queue> etc.