*（指针+索引）和指针之间的差异[] [英] Difference Between *(Pointer + Index) and Pointer[]

问题描述

  int * myPointer = new int [100]; 
 
 // ... 
 
 int firstValue = *（myPointer + 0）; 
 int secondValue = myPointer [1]; 
  

*（myPointer + index）和 myPointer [index] ？

b b b b b b b p>语义上，指针解引用说这是一件事，但我真的关心 X 空格，而数组访问说这里有一堆东西，我关心 Xth 一个。

在大多数情况下，我更喜欢数组形式。 >

int* myPointer = new int[100];

// ...

int firstValue = *(myPointer + 0);
int secondValue = myPointer[1];

Is there any functional difference between *(myPointer + index) and myPointer[index]? Which is considered better practice?

解决方案

Functionally, they are identical.

Semantically, the pointer dereference says "Here's a thing, but I really care about the thing X spaces over", while the array access says "Here's a bunch of things, I care about the Xth one."

In most cases, I would prefer the array form.

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