Apple Mach O Linker警告 [英] Apple Mach O Linker warning

问题描述

我收到这个烦人的警告

Apple Mach-O Linker Warning
Alignment lost in merging tentative definition _searchFlag

我已经在constant.h文件中声明了搜索标记，例如

i have declared the search flag in the constant.h file like this

BOOL searchFlag

过去2天，我一直在解决这个问题，并且尝试了Google提供的所有可能解决方案，但似乎都没有用.

I am stuck up on this issue from the past 2 days and i have tried all the possible solutions from google but none of them seems to be working.

我的应用程序同时支持我添加了设置的armv6和v7拱门，但似乎有点问题，这只是因为bool标志自2天以来就一直困扰我.

My app supports both armv6 and v7 arch for which i have added the settings but this dosent seems to be the problem, its just this bool flag that is biting my head since 2 days.

请帮助我 谢谢

推荐答案

标头中的全局变量在ObjC中是不好的juju；我并没有对全局变量的使用做出判断(因为有时确实需要使用全局变量)，但是我将以不同的方式声明它们.

Globals in headers are bad juju in ObjC; I'm not making a judgement on the use of globals (as they truly are sometimes necessary), but I would go about declaring them in a different way.

我能想到的最干净，最简单的方法(也是我的首选方法)是创建一个新类，该类将全局变量的访问器实现为类方法，并将变量本身声明为源文件中的静态变量.

The cleanest and easiest method I can think of (and my preferred method), is to create a new class that implements accessors for your globals as class methods, and declares the variables themselves as static variables in the source file.

myglobal.h

@interface MyGlobal : Object
{
}

+ (BOOL)searchFlag;
+ (void)setSearchFlag:(BOOL)aFlag;

@end


myglobal.m

#import "myglobal.h"

// Static variables
static BOOL _searchFlag = NO;

@implementation MyGlobal

+ (BOOL)searchFlag
{
    return _searchFlag;
}

+ (void)setSearchFlag:(BOOL)aFlag
{
    _searchFlag = aFlag;
}

@end

使用此方法，访问全局变量就像[MyGlobal searchFlag]或[MyGlobal setSearchFlag: YES]一样容易.

Using this method, accessing globals is as easy as [MyGlobal searchFlag] or [MyGlobal setSearchFlag: YES].

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