Differences between pointer declaration [duplicate]

问题

This question already has an answer here:

Difference between char* var; and char *var;? [duplicate] (1 answer)

Closed 7 years ago.

Is there any differences between these two declarations?

int* a;
int *a;

Or these two declarations are the same (pointer to an integer)?

回答1:

They're exactly the same, but here's a small gotcha I came across when first learning C years ago. The * binds to the variable, not the type. This means that

int* a, b;

Declares a as a pointer to int, and b as an int. To declare both as pointers, one should do.

int *a, *b;

This is why I prefer to place the * next to the name.

来源：https://stackoverflow.com/questions/20306168/differences-between-pointer-declaration