c++:将char数组的一部分转换为int的有效方法。

I have a char buffer that contains several integers one after the other without any breaks between them, where the offsets of each separate number are known in advance. For example "1234123123456", where from position [0] to [3] it would be the first number, [4] to [6] the second, and [7] to the end would be the third.I have a char buffer that contains several inte