Help us understand the problem. What is going on with this article?

まいなす

More than 5 years have passed since last update.
unsinged int n = 1;

while(n) {
  n *= 2;
  printf("%d\n", n);
}

・・・マイナスになるやないか!
せっかくだからマイナスつくってみよう。

unsigned char c = 0xff;
unsigned char range = 0xff-0x80;

char i;
for(i=range; i>0; --i) {
  printf("%d\n", ~c+i+range);
}

うーん(´・ω・`)
いいんかこれ。

だいたい printf("%d\" ...) ってなにもの?
フォーマット指定子ってなにしてるかわからん。

1の補数はあふれたビットが下位のビットにまわってくるらしい。
よく tcp/ip プロトコルでみるね!

Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away