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unicode: fix handling of short 1-4 char tables

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function                                             old     new   delta
in_uint16_table                                       92     107     +15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2020-11-30 11:18:00 +01:00
parent eb773054e4
commit 33e955ab91
2 changed files with 4 additions and 3 deletions
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1
libbb/time.c
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@ -250,7 +250,6 @@ char* FAST_FUNC strftime_YYYYMMDDHHMMSS(char *buf, unsigned len, time_t *tp)
#if ENABLE_MONOTONIC_SYSCALL
#include <sys/syscall.h>
/* Old glibc (< 2.3.4) does not provide this constant. We use syscall
* directly so this definition is safe. */
#ifndef CLOCK_MONOTONIC

6
libbb/unicode.c
View File

@ -306,8 +306,10 @@ static int in_uint16_table(unsigned ucs, const uint16_t *table, unsigned max)
unsigned first, last;
first = table[0] >> 2;
last = first + (table[0] & 3);
if (ucs < first || ucs > last)
if (ucs < first)
return 0;
last = (table[max] >> 2) + (table[max] & 3);
if (ucs > last)
return 0;
min = 0;