191问答库 > c语言中int型的数超出范围会是怎样的

c语言中int型的数超出范围会是怎样的

2025-03-15 16:17:26
推荐回答（1个）
回答1：

C语言int占4个字节，一共32位，范围是-2147483648 ~ 2147483647。

如果超出这个范围，就会加上或减去4294967296，使得值还落在这个范围内。
比如定义int变量a的值为2147483647，再加1就是2147483648，超出范围，因此需要减掉4294967296，最后打印的值就是-2147483648

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