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* libio/ioungetwc.c (ungetwc): Orient stream first.
	* libio/Makefile (tests): Add tst-ungetwc1.
	* libio/tst-ungetwc1.c: New file.
This commit is contained in:
Ulrich Drepper
2001-08-09 02:01:10 +00:00
parent 5e473a7146
commit 8f739934b0
4 changed files with 94 additions and 6 deletions
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10
libio/ioungetwc.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1993, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
/* Copyright (C) 1993, 1996-1999, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -35,11 +35,13 @@ ungetwc (c, fp)
{
int result;
CHECK_FILE (fp, WEOF);
if (c == WEOF)
return WEOF;
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
result = _IO_sputbackwc (fp, c);
_IO_fwide (fp, 1);
if (c == WEOF)
result = WEOF;
else
result = _IO_sputbackwc (fp, c);
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
return result;