C language unsigned number minus unsigned number

Others 2021-03-23 08:19:28 views: null

After a long time of debugging, I found out that this thing was overflowing or unsigned. When it overflowed, the result of subtraction was huge.

If you want to get a negative number, subtract it first and then give the result to an unsigned number, or define it as a signed number. This thing, when I use the ABS macro, confused me.

C language that has been used for more than 10 years.

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Origin blog.csdn.net/C_ROOKIES/article/details/109352320

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