在 iOS 应用中使用 STL [英] Using STL in iOS app

问题描述

在网上搜索我找不到任何教程，其中包含在 iOS 应用程序中使用 STL 的步骤.例如，如果我想在不与任何 Cocoa 结构交互的应用的后端工作类中使用 Vector.

Searching on the net I could not find any tutorials taking one through the steps to using the STL in an iOS app. So for instance, if I wanted to use a Vector in my app's back end worker classes which don't interact with any Cocoa structures.

如果有人能给我一个简单的Hello world"等价物，我将不胜感激.或者向我指出他们可能找到的任何教程.

If someone could perhaps give me a simple "Hello world" equivalent for this, that would be much appreciated. Or point me to any tutorials that they may have found.

谢谢

推荐答案

这里是一些示例代码.新建一个ios项目，设置BuildSettings->Apple LLVM Language->Compile Sources As为Objective-C++".打开ViewController.m"并添加这一行

Here is some sample code. Create a new ios project, set BuildSettings->Apple LLVM Language->Compile Sources As to "Objective-C++". Open "ViewController.m" and add this line

#import "queue"

并将其放入 viewDidLoad.

and put this into the viewDidLoad.

typedef std::pair<int, int> P;
std::priority_queue<P> queue;
for (int i = 0; i < 10; ++i)
{
    queue.push(P(rand(), i));
}    
for (int i = 0; i < 10; ++i, queue.pop())
{
    P p = queue.top();
    printf("%u %u\n",p.first,p.second);
}

对我有用.

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