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bug#10344: some string function fail for UCS2

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substr fix
This commit is contained in:
bar@noter.(none) 2005-05-10 14:13:58 +05:00
parent b580a12d47
commit 8a5c6502ca
3 changed files with 29 additions and 1 deletions
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18
mysql-test/r/ctype_ucs.result
View file

@ -598,6 +598,24 @@ ucs2_bin 00610009
ucs2_bin 0061
ucs2_bin 00610020
drop table t1;
select hex(substr(_ucs2 0x00e400e50068,1));
hex(substr(_ucs2 0x00e400e50068,1))
00E400E50068
select hex(substr(_ucs2 0x00e400e50068,2));
hex(substr(_ucs2 0x00e400e50068,2))
00E50068
select hex(substr(_ucs2 0x00e400e50068,3));
hex(substr(_ucs2 0x00e400e50068,3))
0068
select hex(substr(_ucs2 0x00e400e50068,-1));
hex(substr(_ucs2 0x00e400e50068,-1))
0068
select hex(substr(_ucs2 0x00e400e50068,-2));
hex(substr(_ucs2 0x00e400e50068,-2))
00E50068
select hex(substr(_ucs2 0x00e400e50068,-3));
hex(substr(_ucs2 0x00e400e50068,-3))
00E400E50068
SET NAMES latin1;
SET collation_connection='ucs2_swedish_ci';
CREATE TABLE t1 (Field1 int(10) default '0');

10
mysql-test/t/ctype_ucs.test
View file

@ -374,6 +374,16 @@ SET NAMES latin1;
SET collation_connection='ucs2_bin';
-- source include/ctype_filesort.inc
#
# Bug#10344 Some string functions fail for UCS2
#
select hex(substr(_ucs2 0x00e400e50068,1));
select hex(substr(_ucs2 0x00e400e50068,2));
select hex(substr(_ucs2 0x00e400e50068,3));
select hex(substr(_ucs2 0x00e400e50068,-1));
select hex(substr(_ucs2 0x00e400e50068,-2));
select hex(substr(_ucs2 0x00e400e50068,-3));
SET NAMES latin1;
#
# Bug#8235

2
strings/ctype-ucs2.c
View file

@ -1261,7 +1261,7 @@ uint my_charpos_ucs2(CHARSET_INFO *cs __attribute__((unused)),
const char *e __attribute__((unused)),
uint pos)
{
return pos*2;
return pos > e - b ? e - b + 2 : pos * 2;
}