c语言实现原码补码反码

#define _CRT_SECURE_NO_WARNINGS

#include
#include
#include
#include



void  bcode(int num, char strb[33]) {
	unsigned int data = 1 << 31;
	for (int i = 1;i <= 32;i++) {
		if (num & data) {
			strb[i - 1] = '1';
		}
		else {
			strb[i - 1] = '0';
		}
		num <<= 1;
	}
}

void fcode(int num,char strf[33]) {
	unsigned int data = 1 << 31;

	if (num < 0)
	{
		num = num - 1;
	}

	for (int i = 1;i <= 32;i++) {
		if (num & data) {
			strf[i - 1] = '1';
		}
		else {
			strf[i - 1] = '0';
		}
		num <<= 1;
	}
}

void ycode(int num, char stry[33]) {
	unsigned int data = 1 << 31;


	if (num < 0)
	{
		num = ~num + 1;
		num = num | data;
	}

	for (int i = 1;i <= 32;i++) {
		if (num & data) {
			stry[i - 1] = '1';
		}
		else {
			stry[i - 1] = '0';
		}
		num <<= 1;
	}
}


void main()
{
	int num;

    //多后面一个结束符 \0
	char stry[33] = { 0 };
	char strf[33] = { 0 };
	char strb[33] = { 0 };
	scanf("%d", &num);
	bcode(num, strb);
	printf("%s", strb);

	fcode(num, strf);
	printf("\n%s", strf);

	ycode(num, stry);
	printf("\n%s", stry);

	system("pause");

}

转载地址：https://edu.51cto.com/center/course/lesson/index?id=628373