基元的直接初始化与复制初始化
在初始化 int
或指针等原始类型时,可以使用 copy-initialization 或 direct-initialization.
When initializing primitive types like int
or pointers one can use either copy-initialization or direct-initialization.
int a = 10;
int b(10);
虽然后一种方式更适合带有构造函数的对象,但我没有看到人们将它用于原语.我知道使用 '=' 运算符有点更自然"(尤其是对于数字而言),但是有没有人在现实生活中编写代码:
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;
}
谢谢.
这个问题询问的是编码风格和最佳实践,而不是技术实现.
The question asks about coding styles and best practices rather than technical implementation.
推荐答案
有些人这样做是为了保持一致.
Some people do this to be consistent.
在模板中,代码可以是
for (T i(0); i < 5; ++i) {
cout << i << endl;
}
在任何地方都这样写可以使编码风格保持一致.
and writing it that way everywhere would make the coding style consistent.
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