chromium/ui/gfx/range/range.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_RANGE_RANGE_H_
#define UI_GFX_RANGE_RANGE_H_

#include <stddef.h>
#include <stdint.h>

#include <algorithm>
#include <iosfwd>
#include <limits>
#include <string>

#include "base/numerics/safe_conversions.h"
#include "build/build_config.h"
#include "ui/gfx/range/gfx_range_export.h"

#if BUILDFLAG(IS_APPLE)
#if __OBJC__
#import <Foundation/Foundation.h>
#else
typedef struct _NSRange NSRange;
#endif
#endif  // BUILDFLAG(IS_APPLE)

namespace gfx {

// This class represents either a forward range [min, max) or a reverse range
// (max, min]. |start_| is always the first of these and |end_| the second; as a
// result, the range is forward if (start_ <= end_).  The zero-width range
// [val, val) is legal, contains and intersects itself, and is contained by and
// intersects any nonempty range [min, max) where min <= val < max.
class GFX_RANGE_EXPORT Range { … };

GFX_RANGE_EXPORT std::ostream& operator<<(std::ostream& os, const Range& range);

}  // namespace gfx

#endif  // UI_GFX_RANGE_RANGE_H_