What do people use to denote that size_t is invalid? -1 does not work, and 0 can be a valid size.
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What do people use to denote that size_t is invalid? -1 does not work, and 0 can be a valid size.
Perhaps
((size_t)-1)?Strictly speaking, it is a valid size, but once you have this one you’re not likely to need any other 😉