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C language unsigned int and int

2022-07-22 20:34:00 【DmrForever】

```c

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

 

void main(){

    int a=-1;

    unsigned int b = -1;

    printf("%d\n",a);

    printf("%u\n",b);

    // << Compliance operation priority is greater than -

    printf("%u\n",(1<<32)-1); //32 All the seats are 1, by unsigned int Maximum of type , by int Type of -1

    printf("%d\n",(1<<32)-1);

    printf("%d\n",sizeof(int));

    printf("%d\n",sizeof(long));

    printf("%d\n",sizeof(long long));

    //  The positive original code is the same as the negative complement ; Negative inverse code means that the original code is reversed except for the sign bit , Complement is the inverse plus one

    /* Output results ：

        -1

        4294967295

        4294967295

        -1

        4

        4

        8

    */

}

```

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