c++ - C++ 引用中 & 符号在语义上的准确位置是什么

Question

众所周知，语义上准确的指针声明方式是

int *x;

代替

int* x;

这是因为 C 将 *x 视为 int，而不是将 x 视为 int 指针。

这很容易证明

int* a, b;

其中a是一个int指针，而b是一个int。

Stack Overflow 上至少有 5 个重复的问题讨论了这个问题以供引用。但是引用文献呢？

Answer 1

Bjarne Stroustrup 说:

A typical C programmer writes int *p; and explains it *p is what is the int emphasizing syntax, and may point to the C (and C++) declaration grammar to argue for the correctness of the style. Indeed, the * binds to the name p in the grammar.

A typical C++ programmer writes int* p; and explains it p is a pointer to an int emphasizing type. Indeed the type of p is int*. I clearly prefer that emphasis and see it as important for using the more advanced parts of C++ well.

当声明一个指针变量或参数时，您可以将星号(或＆符号)放在类型或变量名称的旁边。

最重要的是在单个文件中始终如一地执行此操作。

// These are fine, space preceding.
char *c;
const int &i;

// These are fine, space following.
char* c;
const int& i;