ç初始化采用铸造，这是危险的？ [英] C initializer with cast, is this dangerous?

问题描述

考虑以下几点：

struct Foo 
{
  char c;
  int i;
};


void Bar(void)
{
  struct Foo f = {0}; // use zero initializer

  // do some stuff

  f = (struct Foo) {'h', 1}; // copy different data into f, is this dangerous?
}

请问上述投被认为是危险？这是很好的风格？

Would the cast above be considered dangerous? Is this good style?

推荐答案

这不是一个风格问题;即code不会没有编译（结构美孚）。这不是一个演员，它的语法被称为C99功能的一部分的复合文字的

It's not a matter of style; that code won't compile without the (struct Foo). It's not a cast, it's part of the syntax for a C99 feature known as a compound literal.

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