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Add comment why off-by-one error is hard to fix

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See #83843

Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
This commit is contained in:
Thomas ten Cate 2023-11-01 10:42:10 +01:00
parent 6afd320984
commit 2263d94cc3
1 changed files with 2 additions and 0 deletions
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core/io/resource_uid.cpp
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@ -35,6 +35,8 @@
#include "core/io/dir_access.h"
#include "core/io/file_access.h"
// These constants are off by 1, causing the 'z' and '9' characters never to be used.
// This cannot be fixed without breaking compatibility; see GH-83843.
static constexpr uint32_t char_count = ('z' - 'a');
static constexpr uint32_t base = char_count + ('9' - '0');