Extract and Modify Field in a 32-bit Register

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
    // Extract
    uint8_t extract_field = (reg >> 10) & 0x1F;
    // modify extracted field
    if( extract_field < 31 ){
        extract_field++;
    }
    // Write back
    reg &= ~(0x1F << 10); // Clear first
    reg |= (extract_field & 0x1F) << 10;
    return reg;
}

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