[英]Is arr[i] = i; legal?
I want to initialize a value of all array members to their index.我想将所有数组成员的值初始化为其索引。
int main()
{
int i;
int arr[10];
for (i = 0; i <= 9; i++)
arr[i] = i;
}
Should I consider the sequence point in this case?在这种情况下我应该考虑序列点吗?
Is arr[i] = i
legal and portable? arr[i] = i
合法且可移植吗?
You need to consider sequence points if you modify something more than once in one place, or if you both read and modify something in one place.如果您在一个地方多次修改某些内容,或者如果您在一个地方同时阅读和修改某些内容,则需要考虑序列点。
You're not doing any of that, so your code is fine.你没有做任何这些,所以你的代码很好。
There is no restriction its just assigning a value to the array index没有限制它只是为数组索引分配一个值
If you just want an array of 0123456789 its fine如果你只想要一个 0123456789 的数组,那很好
Although its only one line its a good practice to use {}虽然它只有一行,但使用 {}
for (i = 0; i <= 9; i++)
{
arr[i] = i;
}
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