典型的模板符号 [英] Typical template notations

问题描述

你好，
我是C ++/VC ++(MFC)开发人员.我是STL的新手(不是很新).每当我遇到STL中的任何函数时，由于模板符号的原因，我都很难阅读其原型.
虽然，我对模板的所有类型都很了解，但是却无法理解模板符号.

在这方面的任何帮助将不胜感激.

祝编程愉快.

Hello,
I am C++/VC++(MFC)developer. I am new (not very new) with STL. Whenever I come across any function in STL I find difficult to read its prototype because of template notations.
Though, I know template very well, all the types of templates, but not able to understand template notations.

Any help in this regard will be highly appreciated.

Happy Programming.

推荐答案

STL和模板符号基本上非常简单和标准.他们总是使用相同的样式.

看一下这篇文章:
STL入门指南 [

STL and template notations are basically quite simple and standard; they always use the same style.

have a look at this article :
An Introductory STL tutorial[^]

Max.

也值得通过 ^ ].我认为模板的最大错误是允许使用class关键字来定义类型(而不是typename)，如下所示:

It''s also worth going through this section[^] on MSDN. I think the biggest mistake with templates was allowing the use of the class keyword to define a type (rather than typename) as in:

Template < class T  >
class MyClass
{
    T myVar;
...

其中< class T >实际上表示T是一个占位符，当根据模板构建实类时，该占位符将被实类型替换，例如:

where < class T > actually means that T is a placeholder which will be replaced by a real type when a real class is built from the template such as:

MyClass<int> mc;

其中所有T出现的地方都将替换为int<code>.

where all occurrences of T will be replaced by int<code>.

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