Extract and Modify Field in a 32-bit Register

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

uint32_t update_register(uint32_t reg) {
    uint32_t field = (reg >> 10) & 0x1Fu;   // extract bits 10-14

    if (field < 31u)
    {
        field = field + 1u;
    }

    reg &= ~(0x1Fu << 10);          // clear bits 10-14
    reg |= (field << 10);           // write updated field back

    return reg;
}

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