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mdbx++: fix slice::is_printable().

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Change-Id: I7f572f8e2179313e3cd312a58e46d445b920ba3e
This commit is contained in:
Leonid Yuriev 2020-10-31 18:20:50 +03:00
parent 9f92d5fb7e
commit 4e198915f2
1 changed files with 7 additions and 7 deletions
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14
src/mdbx.c++
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@ -417,15 +417,15 @@ __cold void error::throw_exception() const {
bool slice::is_printable(bool disable_utf8) const noexcept {
enum : byte {
LS = 5, // shift for UTF8 sequence length
P_ = 1 << (LS - 1), // printable ASCII flag
LS = 4, // shift for UTF8 sequence length
P_ = 1 << LS, // printable ASCII flag
N_ = 0, // non-printable ASCII
second_range_mask = P_ - 1, // mask for range flag
r80_BF = P_ | 0, // flag for UTF8 2nd byte range
rA0_BF = P_ | 1, // flag for UTF8 2nd byte range
r80_9F = P_ | 2, // flag for UTF8 2nd byte range
r90_BF = P_ | 3, // flag for UTF8 2nd byte range
r80_8F = P_ | 4, // flag for UTF8 2nd byte range
r80_BF = 0, // flag for UTF8 2nd byte range
rA0_BF = 1, // flag for UTF8 2nd byte range
r80_9F = 2, // flag for UTF8 2nd byte range
r90_BF = 3, // flag for UTF8 2nd byte range
r80_8F = 4, // flag for UTF8 2nd byte range
// valid utf-8 byte sequences
// http://www.unicode.org/versions/Unicode6.0.0/ch03.pdf - page 94