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Add resetStringInfo(), which clears the content of a StringInfo, and

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fixup various places in the tree that were clearing a StringInfo by hand.
Making this function a part of the API simplifies client code slightly,
and avoids needlessly peeking inside the StringInfo interface.
This commit is contained in:
Neil Conway
2007-03-03 19:32:55 +00:00
parent 053981f405
commit 90d76525c5
11 changed files with 57 additions and 69 deletions
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16
src/backend/lib/stringinfo.c
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@ -9,7 +9,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/lib/stringinfo.c,v 1.44 2007/01/05 22:19:29 momjian Exp $
* $PostgreSQL: pgsql/src/backend/lib/stringinfo.c,v 1.45 2007/03/03 19:32:54 neilc Exp $
*
*-------------------------------------------------------------------------
*/
@ -49,8 +49,20 @@ initStringInfo(StringInfo str)
str->data = (char *) palloc(size);
str->maxlen = size;
str->len = 0;
resetStringInfo(str);
}
/*
* resetStringInfo
*
* Reset the StringInfo: the data buffer remains valid, but its
* previous content, if any, is cleared.
*/
void
resetStringInfo(StringInfo str)
{
str->data[0] = '\0';
str->len = 0;
str->cursor = 0;
}