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* @param n 堆的大小
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We can use the fact that the compiler lays out functions one after the other in the compiled executable. By subtracting the address of bar() from barEnd(), we know how big bar() is (conservatively, including any padding necessary for alignment requirements):
他透過窗戶觀看，發現屋外出現眾多執法人員，「我就知道他們是衝著我們這個房子來的。」