将整数转换为位表示 [英] Converting integer to a bit representation

问题描述

如何将整数转换为其位表示。我想要一个整数，并返回一个包含1和0的整数位表示的向量。

How can I convert a integer to its bit representation. I want to take an integer and return a vector that has contains 1's and 0's of the integer's bit representation.

我有一个时间试图做这个

I'm having a heck of a time trying to do this myself so I thought I would ask to see if there was a built in library function that could help.

推荐答案

不起作用

vector<int> convert(int x) {
  vector<int> ret;
  while(x) {
    if (x&1)
      ret.push_back(1);
    else
      ret.push_back(0);
    x>>=1;  
  }
  reverse(ret.begin(),ret.end());
  return ret;
}

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