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Update.
1999-08-10 H.J. Lu <hjl@gnu.org> * stdio-common/vfprintf.c (ORIENT): Check for the old stream. (vfprintf): Likewise. * stdio-common/vfscanf.c (ORIENT): Likewise. * libio/genops.c (__underflow): Likewise. (__uflow): Likewise. * libio/iofputs.c (_IO_fputs): Likewise. * libio/ioftell.c (_IO_ftell): Likewise. * libio/iofwrite.c (_IO_fwrite): Likewise. * libio/ioputs.c (_IO_puts): Likewise. * libio/iosetbuffer.c (_IO_setbuffer): Likewise. * libio/iosetvbuf.c (_IO_setvbuf): Likewise.
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@@ -38,7 +38,7 @@ _IO_setbuffer (fp, buf, size)
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if (!buf)
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size = 0;
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(void) _IO_SETBUF (fp, buf, size);
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if (fp->_mode == 0)
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if (fp->_vtable_offset == 0 && fp->_mode == 0)
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/* We also have to set the buffer using the wide char function. */
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(*fp->_wide_data->_wide_vtable->__setbuf) (fp, buf, size);
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_IO_funlockfile (fp);
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