// Single.pch
// 多线程
// Created by WYC on 17/5/4.
// Copyright © 2017年 ssss. All rights reserved.
//ARC情况下
// ''宏定义的连接符
//带参数的宏 singleH(name) 其中name是参数
//share##name ##后面是要替换的参数
#if __has_feature(objc_arc)
#define singleH(name) +(instancetype)share##name;
#define singleM(name) static id _instance;\
+(instancetype)allocWithZone:(struct _NSZone *)zone{\
static dispatch_once_t onceToken;\
dispatch_once(&onceToken, ^{\
_instance = [super allocWithZone:zone];\
});\
return _instance;\
}\
+(instancetype)share##name{\
return [[self alloc] init];\
}\
-(id)copyWithZone:(NSZone *)zone{\
return _instance;\
}\
-(id)mutableCopyWithZone:(NSZone *)zone{\
return _instance;\
}
#else
#define singleH +(instancetype)shareTools;
#define singleM static id_instance;\
+(instancetype)allocWithZone:(struct _NSZone *)zone{\
static dispatch_once_t onceToken;\
dispatch_once(&onceToken, ^{\
_instance = [super allocWithZone:zone];\
});\
return _instance;\
}\
+(instancetype)shareTools{\
return [[self alloc] init];\
}\
-(id)copyWithZone:(NSZone *)zone{\
return _instance;\
}\
-(id)mutableCopyWithZone:(NSZone *)zone{\
return _instance;\
-(oneway void)release\
{\
{\
-(instancetype)retain\
{\
return _instance;\
}\
-(NSUInteger)retainCount\
{\
return MAXFLOAT;\
}
#endif