//
//  MCORange.h
//  mailcore2
//
//  Created by DINH Viêt Hoà on 3/24/13.
//  Copyright (c) 2013 MailCore. All rights reserved.
//

#ifndef __MAILCORE_MCORANGE_H_

#define __MAILCORE_MCORANGE_H_

#import <Foundation/Foundation.h>

#ifdef __cplusplus
#include <MailCore/MCBaseTypes.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif

@class MCOIndexSet;

typedef struct {
    // first integer of the range.
    uint64_t location;
    
    // length of the range.
    uint64_t length;
} MCORange;

// Constants for an emtpy range.
extern MCORange MCORangeEmpty;

// Returns a new range given a location and length.
MCORange MCORangeMake(uint64_t location, uint64_t length);

// Returns an index set that is the result of sustracting a range from a range.
MCOIndexSet * MCORangeRemoveRange(MCORange range1, MCORange range2);

// Returns an index set that is the result of the union a range from a range.
MCOIndexSet * MCORangeUnion(MCORange range1, MCORange range2);

#ifdef __cplusplus

// Returns a C++ range from an Objective-C range.
mailcore::Range MCORangeToMCRange(MCORange range);

// Returns an Objective-C range from a C++ range.
MCORange MCORangeWithMCRange(mailcore::Range range);

#endif

// Returns the intersection of two ranges.
MCORange MCORangeIntersection(MCORange range1, MCORange range2);

// Returns YES if two given ranges have an intersection.
BOOL MCORangeHasIntersection(MCORange range1, MCORange range2);

// Returns left bound of a range.
uint64_t MCORangeLeftBound(MCORange range);

// Returns right bound of a range.
uint64_t MCORangeRightBound(MCORange range);

#ifdef __cplusplus
}
#endif

#endif