Bit Operations using Macros

Code

#include <stdio.h>
#include <stdint.h>

// Define bitwise macros here
#define SET_BIT(reg, bit)     ((reg) |= (1U << (bit)))
#define CLEAR_BIT(reg, bit)   ((reg) &= ~(1U << (bit)))
#define TOGGLE_BIT(reg, bit)  ((reg) ^= (1U << (bit)))
#define CHECK_BIT(reg, bit)   (((reg) >> (bit)) & 1U)
uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    /*reg|=1<<2;
    reg|=1<<7;
    reg&=~(1<<3);
    reg^=1<<5;*/
    SET_BIT(reg, 2);
    SET_BIT(reg,7 )  ; 
    CLEAR_BIT(reg, 3) ;
    TOGGLE_BIT(reg, 5);
    return reg;
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", modify_register(reg));
    return 0;
}

Solving Approach