问题描述:
Write a python function to set all even bits of a given number.

测试用例:
['assert even_bit_set_number(10) == 10', 'assert even_bit_set_number(20) == 30', 'assert even_bit_set_number(30) == 30']

生成的代码:
def even_bit_set_number(num):
    # Create a mask with all even bits set to 1
    mask = int('10101010101010101010101010101010', 2)  # This is a 32-bit mask for even positions
    return num | mask  # Set even bits of the number using bitwise OR

# Test cases
assert even_bit_set_number(10) == 10
assert even_bit_set_number(20) == 30
assert even_bit_set_number(30) == 30