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Correct potential infinite loop in pg_utf2wchar_with_len;

it failed to cover the case where high bits of char are 100 or 101.Not sure if fix is right, but it agrees with pg_utf_mblen ... and itdoesn't lock up ...

1 parent2acfc4f commit0d99c95Copy full SHA for 0d99c95

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src/backend/utils/mb
- wchar.c

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`‎src/backend/utils/mb/wchar.c`

Lines changed: 6 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,7 @@`
`1`	`1`	`/*`
`2`	`2`	`* conversion functions between pg_wchar and multi-byte streams.`
`3`	`3`	`* Tatsuo Ishii`
`4`		`- * $Id: wchar.c,v 1.6 1999/03/24 07:02:17 ishii Exp $`
	`4`	`+ * $Id: wchar.c,v 1.7 1999/04/25 20:35:51 tgl Exp $`
`5`	`5`	`*/`
`6`	`6`
`7`	`7`	`#include"mb/pg_wchar.h"`
`@@ -268,6 +268,11 @@ pg_utf2wchar_with_len(const unsigned char from, pg_wchar to, int len)`
`268`	`268`	`*to \|=c2 <<6;`
`269`	`269`	`*to \|=c3;`
`270`	`270`	`}`
	`271`	`+else`
	`272`	`+{`
	`273`	`+to=from++;`
	`274`	`+len--;`
	`275`	`+}`
`271`	`276`	`to++;`
`272`	`277`	`}`
`273`	`278`	`*to=0;`

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Commit0d99c95

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`‎src/backend/utils/mb/wchar.c`

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