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(_IO_fwide): If compatibility with glibc 2.0 is needed tst for such an old structure and don't do anything.

This commit is contained in:
Ulrich Drepper 2000-09-06 03:37:22 +00:00
parent 10878c33f1
commit b853e8fa2e
1 changed files with 15 additions and 3 deletions
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18
libio/iofwide.c
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@ -36,6 +36,7 @@
# include <locale/localeinfo.h>
# include <wcsmbs/wcsmbsload.h>
# include <iconv/gconv_int.h>
# include <shlib-compat.h>
#endif
@ -96,9 +97,20 @@ _IO_fwide (fp, mode)
/* Normalize the value. */
mode = mode < 0 ? -1 : (mode == 0 ? 0 : 1);
if (mode == 0 || fp->_mode != 0)
/* The caller simply wants to know about the current orientation
or the orientation already has been determined. */
if (mode == 0)
/* The caller simply wants to know about the current orientation. */
return fp->_mode;
#if defined SHARED && defined _LIBC \
&& SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
if (__builtin_expect (&_IO_stdin_used == NULL, 0)
&& (fp == _IO_stdin || fp == _IO_stdout || fp == _IO_stderr))
/* This is for a stream in the glibc 2.0 format. */
return -1;
#endif
if (fp->_mode != 0)
/* The orientation already has been determined. */
return fp->_mode;
/* Set the orientation appropriately. */