cosmopolitan/ctl/less.h
Justine Tunney c4c812c154
Introduce ctl::set and ctl::map
We now have a C++ red-black tree implementation that implements standard
template library compatible APIs while compiling 10x faster than libcxx.
It's not as beautiful as the red-black tree implementation in Plinko but
this will get the job done and the test proves it upholds all invariants

This change also restores CheckForMemoryLeaks() support and fixes a real
actual bug I discovered with Doug Lea's dlmalloc_inspect_all() function.
2024-06-23 22:27:11 -07:00

38 lines
874 B
C++

// -*-mode:c++;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8-*-
// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
#ifndef CTL_LESS_H_
#define CTL_LESS_H_
#include "utility.h"
namespace ctl {
template<class T = void>
struct less
{
constexpr bool operator()(const T& lhs, const T& rhs) const
{
return lhs < rhs;
}
typedef T first_argument_type;
typedef T second_argument_type;
typedef bool result_type;
};
template<>
struct less<void>
{
template<class T, class U>
constexpr auto operator()(T&& lhs,
U&& rhs) const -> decltype(ctl::forward<T>(lhs) <
ctl::forward<U>(rhs))
{
return ctl::forward<T>(lhs) < ctl::forward<U>(rhs);
}
typedef void is_transparent;
};
} // namespace ctl
#endif /* CTL_LESS_H_ */