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
    uint32_t mask = 0;
    uint32_t val = 0;

    mask = 0x1f<<10;

    val = (mask & reg)>>10;

    if(val< 31)
    {
        val += 1;
        val = val << 10;

        reg &= ~ mask;
        reg |= val;
    }
    
    return reg;
}

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