直接初始化与基元的复制初始化(Direct Initialization vs Copy Initialization for Primitives)

直接初始化与基元的复制初始化(Direct Initialization vs Copy Initialization for Primitives)

初始化基本类型（如int或指针）时，可以使用复制初始化或直接初始化 。

int a = 10; int b(10);

虽然后一种方式是为具有构造函数的对象提供的，但我没有看到人们将它用于基元。 我理解使用'='运算符是“更自然”（特别是数字），但有人在现实代码中编写代码：

for (int i(0); i < 5; ++i) { cout << i << endl; }

谢谢。

编辑：问题是关于编码风格和最佳实践而不是技术实现。

When initializing primitive types like int or pointers one can use either copy-initialization or direct-initialization.

int a = 10; int b(10);

Although the latter way is preffered for objects with constructors, I don't see people using it for primitives. I understand that it is kind of "more natural" (especially for numbers) to use the '=' operator but is there anybody writing things like in real-life code:

for (int i(0); i < 5; ++i) { cout << i << endl; }

Thanks.

EDIT: The question asks about coding styles and best practices rather than technical implementation.

最满意答案

有些人这样做是为了保持一致。

在模板内部，代码可以是

for (T i(0); i < 5; ++i) { cout << i << endl; }

并且以任何方式编写它将使编码风格保持一致。

Some people do this to be consistent.

Inside a template, the code could be

for (T i(0); i < 5; ++i) { cout << i << endl; }

and writing it that way everywhere would make the coding style consistent.