STL locale 使用小结

关于 VC 中的 STL string 实现

輝夜(tadvent) posted @ 2009年4月25日 07:35 in C/C++ with tags VC STL string , 3384 阅读
今天小实验一下发现 VC9 的 STL string 实现中没有使用 引用计数和写时拷贝
在 VC6.0 时默认还是有这两个特性的,从 VC7.0 开始貌似就取消了,大概是考虑到线程安全问题
如果我不用多线程,这两个特性应该还是可以一定程度上提高效率的吧
不然在返回一个 string 时是否也要考虑用 auto_ptr 了呢...
看来有必要自己实现一个 string ,或者偶尔考虑用一下其他库的...
 
不过从一致性考虑,感觉还是显式使用智能指针实现以上功能比较好,不然其他各种自定类型是不是也有必要封装一个 share_ptr 类似特性呢。

 

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Alyssa 说:
2022年12月30日 23:16

There are a few ways to implement the STL string in VC. The most common way is to use the string header engagement rings file that comes with the STL. This header file provides the basic functions for working with strings, including length, capacity, and resize. Another way to implement the STL string in VC is to use the stringstream header file. This header file provides more advanced functions for working with strings, including concatenation and insertion.


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