问题描述
是否有任何理由更喜欢 static_cast<>
而不是 C 风格的转换?它们是等价的吗?有什么速度差异吗?
Is there any reason to prefer static_cast<>
over C style casting? Are they equivalent? Is there any sort of speed difference?
推荐答案
C++ 样式转换由编译器检查.C 样式转换不是,并且可能在运行时失败.
C++ style casts are checked by the compiler. C style casts aren't and can fail at runtime.
另外,c++ 风格的转换很容易搜索,而 c 风格的转换真的很难搜索.
Also, c++ style casts can be searched for easily, whereas it's really hard to search for c style casts.
另一个很大的好处是 4 种不同的 C++ 样式转换更清楚地表达了程序员的意图.
Another big benefit is that the 4 different C++ style casts express the intent of the programmer more clearly.
在编写 C++ 时,我几乎总是使用 C++ 而不是 C 风格.
When writing C++ I'd pretty much always use the C++ ones over the the C style.
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