c - 我们什么时候说两个标识符具有相同的范围？

Question

C 标准定义两个标识符具有相同的范围当且仅当它们的范围终止于同一点。并进一步指出:

Structure, union, and enumeration tags have scope that begins just after the appearance of the tag in a type specifier that declares the tag. Each enumeration constant has scope that begins just after the appearance of its defining enumerator in an enumerator list. Any other identifier has scope that begins just after the completion of its declarator.

这是否意味着正式调用两个标识符具有相同的范围，即使它们的范围开头不匹配？

Answer 1

是的，这是一种合理的思考方式。否则没有两个标识符具有相同的范围!

{
    int a;
    int b;
}

在上面，a 和b 的范围从不同的点开始，但我们当然希望将它们视为在同一范围内!