Extract and Modify Field in a 32-bit Register

Code

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
    // Extract the bit field
    uint32_t mask = (1 << 5) -1;
    uint32_t field = (reg >> 10) & mask;
    if (field < 31){
        field++;
    }
    // clear
    reg &= ~(mask << 10);
    reg |= (field & mask) << 10;
    return reg;
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    uint32_t updated = update_register(reg);
    printf("%u", updated);
    return 0;
}

Solving Approach