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
    int pos = 10;
    int mask = 0x1F;

    uint32_t field_mask = mask << pos;
    uint32_t field_value = (reg >> pos) & mask; // extract value

    if(field_value < 31)  // modify value
        field_value++;

    reg &= ~field_mask; // clear the field
    reg |= (field_value << pos); // update the field

    return reg;
}

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

Solving Approach