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authorDavid Young <dyoung@hdfgroup.org>2022-04-30 03:29:20 (GMT)
committerGitHub <noreply@github.com>2022-04-30 03:29:20 (GMT)
commitc4d70e3571262df0fcf381f5804b671dc9f86bc1 (patch)
treed5942228d0e2b320b23fdae7c5de278063d77955 /src/H5private.h
parentffd311cf36814c2742234b8a02f47078cb7c8158 (diff)
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Be a bit safer with signed arithmetic, thus quieting some signed-overflow warnings from GCC (#1706)
* Avoid a signed overflow: check the range of `entry_ptr->age` before increasing it instead of increasing it and then checking the range. This quiets a GCC warning. * Avoid the potential for signed overflow by rewriting expressions `MAX(0, fwidth - n)` as `MAX(n, fwidth) - n` for various `n`. This change quiets some GCC warnings. * Change some local variables that cannot take sensible negative values from signed to unsigned. This quiets GCC warnings about potential signed overflow. * In a handful of instances, check the range of a signed integer before increasing/decreasing it, just in case the increase/decrease overflows. This quiets a handful of GCC signed-overflow warnings. * Committing clang-format changes Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
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