bpo-39605: Fix some casts to not cast away const#18453
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@@ Coverage Diff @@
## master #18453 +/- ##
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- Coverage 82.20% 82.11% -0.09%
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Files 1957 1954 -3
Lines 589324 583606 -5718
Branches 44428 44428
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- Hits 484430 479255 -5175
+ Misses 95233 94705 -528
+ Partials 9661 9646 -15
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Thanks @petdance for the PR, and @benjaminp for merging it 🌮🎉.. I'm working now to backport this PR to: 3.8. |
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GH-18471 is a backport of this pull request to the 3.8 branch. |
miss-islington
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Feb 12, 2020
gcc -Wcast-qual turns up a number of instances of casting away constness of pointers. Some of these can be safely modified, by either: Adding the const to the type cast, as in: - return _PyUnicode_FromUCS1((unsigned char*)s, size); + return _PyUnicode_FromUCS1((const unsigned char*)s, size); or, Removing the cast entirely, because it's not necessary (but probably was at one time), as in: - PyDTrace_FUNCTION_ENTRY((char *)filename, (char *)funcname, lineno); + PyDTrace_FUNCTION_ENTRY(filename, funcname, lineno); These changes will not change code, but they will make it much easier to check for errors in consts (cherry picked from commit e6be9b5) Co-authored-by: Andy Lester <andy@petdance.com>
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gcc -Wcast-qualturns up a number of instances of casting away constness of pointers. Some of these can be safely modified, by either:Adding the
constto the type cast, as in:or, Removing the cast entirely, because it's not necessary (but probably was at one time), as in:
These changes will not change code, but they will make it much easier to check for errors in consts.
https://bugs.python.org/issue39605