多个函数使用同一个模板? [英] Multiple functions using the same template?

问题描述

是否可以在同一个模板中包含多个函数而不是重写模板两次?就像你在写:

Is it possible to include more than one function in the same template instead of rewriting the template twice? Like if you were writing:

template <typename T>
void A() {
    //...
}

template <typename T>
void B() {
    //...
}

那些不是同一个函数，但它们共享一个相似的模板(使用泛型类型T).有没有办法只初始化模板一次?

Those are not the same function, but they share a similar template (using the generic type T). Is there a way to initialize the template only once?

推荐答案

将它们分组在一个类模板中可以实现这一点.

Grouping them inside a class template would achieve that.

template <class T>
struct Functions {
    static void A() { /*...*/ }
    static void B() { /*...*/ }
};

但是，您无法从函数的参数中推导出 T，并且调用语法更长:

However, you lose the ability to deduce T from the functions' arguments, and the calling syntax is longer :

Functions<double>::A();

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