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authorBrad King <brad.king@kitware.com>2024-01-17 14:56:00 (GMT)
committerBrad King <brad.king@kitware.com>2024-01-17 15:17:06 (GMT)
commitd9d9326e1438855efd5089f76943ce7b31d1f2ad (patch)
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parent14abdc8e2b7d49cf74354894f3bd8cbf35b3bf85 (diff)
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Source: Avoid out-of-range inputs to std::isspace()
`isspace` takes `int` but documents that the value must be representable by `unsigned char`, or be EOF. Use a wrapper to cast to `unsigned char` to avoid sign extension while converting to `int`. This generalizes the fix from commit 5e8c176e2a (cmExecuteProcessCommand: Cast c to unsigned char before cast to int, 2024-01-05) to other `isspace` call sites. This was detected by assertions in the MSVC standard library while processing UTF-8 text. Issue: #25561
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