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optional size for 'setvbuf'

This commit is contained in:
Roberto Ierusalimschy 2005-06-06 15:42:21 -03:00
parent 86add535d8
commit 3ad03b331d
1 changed files with 4 additions and 2 deletions
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6
liolib.c
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@ -1,5 +1,5 @@
/*
** $Id: liolib.c,v 2.61 2005/05/25 13:21:26 roberto Exp roberto $
** $Id: liolib.c,v 2.62 2005/06/06 13:30:52 roberto Exp roberto $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
@ -442,7 +442,9 @@ static int f_setvbuf (lua_State *L) {
static const char *const modenames[] = {"no", "full", "line", NULL};
FILE *f = tofile(L);
int op = luaL_checkoption(L, 2, NULL, modenames);
return pushresult(L, setvbuf(f, NULL, mode[op], 0) == 0, NULL);
lua_Integer sz = luaL_optinteger(L, 3, BUFSIZ);
int res = setvbuf(f, NULL, mode[op], sz);
return pushresult(L, res == 0, NULL);
}