diff options
Diffstat (limited to 'gnu/lib/libg++/iostream/stdstrbufs.C')
| -rw-r--r-- | gnu/lib/libg++/iostream/stdstrbufs.C | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/gnu/lib/libg++/iostream/stdstrbufs.C b/gnu/lib/libg++/iostream/stdstrbufs.C deleted file mode 100644 index a9d44374cd4..00000000000 --- a/gnu/lib/libg++/iostream/stdstrbufs.C +++ /dev/null @@ -1,133 +0,0 @@ -// This is part of the iostream library, providing input/output for C++. -// Copyright (C) 1992 Per Bothner. -// -// This library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Library General Public -// License as published by the Free Software Foundation; either -// version 2 of the License, or (at your option) any later version. -// -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -// Library General Public License for more details. -// -// You should have received a copy of the GNU Library General Public -// License along with this library; if not, write to the Free -// Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -#include "ioprivate.h" -#include <stdio.h> - -// This file defines the standard streambufs, corresponding to cin, cout, cerr. -// We define two sets: -// -// __std_filebuf_0, __std_filebuf_1, __std_filebuf_2 are filebufs using -// file descriptor 0/1/2. -// -// __stdin_stdiobuf, __stdout_stdiobuf, __stderr_stdiobuf are stdiostreams -// pointing to stdin, stdout, stderr. - - -// To avoid problems depending on constructor order (and for -// efficiency) the standard streambufs (and streams) are -// constructed statically using C-style '{ ... }' initializers. -// Since you're not allowed to do this for structs that -// have virtuals, we define fake streambuf and stream classes -// that don't have any C++-isms, and initialize those. -// To initialize the vtable field of the standard filebufs, -// we use the expression 'vt_filebuf' which must evaluate to -// (the address of) the virtual function table for the -// filebuf class. - -#if _G_NAMES_HAVE_UNDERSCORE -#define UNDERSCORE "_" -#else -#define UNDERSCORE "" -#endif - -// First define the filebuf-based objects. - -#if !defined(vt_filebuf) -#ifndef __GNUG__ -// This works for cfront. -#define vt_filebuf __vtbl__7filebuf -extern char vt_filebuf[1]; -#elif _G_DOLLAR_IN_LABEL -#if __GNUC_MAJOR__ > 2 || __GNUC_MINOR__ >= 5 // XXX I'm not sure it was - // introduced in 2.5 -extern char vt_filebuf[1] asm(UNDERSCORE "_vt$7filebuf"); -#else -extern char vt_filebuf[1] asm(UNDERSCORE "_vt$filebuf"); -#endif -#else -#if __GNUC_MAJOR__ > 2 || __GNUC_MINOR__ >= 5 // XXX I'm not sure it was - // introduced in 2.5 -extern char vt_filebuf[1] asm(UNDERSCORE "_vt.7filebuf"); -#else -extern char vt_filebuf[1] asm(UNDERSCORE "_vt.filebuf"); -#endif -#endif -#endif /* !defined(vt_filebuf) */ - -struct _fake_filebuf { - struct __streambuf s; - char* vtable; - struct __file_fields f; -}; - -#define FILEBUF_LITERAL(CHAIN, FLAGS) \ - { _IO_MAGIC+_S_LINKED+_S_IS_FILEBUF+_S_IS_BACKUPBUF+FLAGS, \ - 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, 0, 0, 0, 0, 0} - -#define DEF_FILEBUF(NAME, FD, CHAIN, FLAGS) \ - _fake_filebuf NAME = {FILEBUF_LITERAL(CHAIN, FLAGS), vt_filebuf, {FD}}; - -DEF_FILEBUF(__std_filebuf_0, 0, 0, _S_NO_WRITES); -DEF_FILEBUF(__std_filebuf_1, 1, (streambuf*)&__std_filebuf_0, _S_NO_READS); -DEF_FILEBUF(__std_filebuf_2, 2, (streambuf*)&__std_filebuf_1, - _S_NO_READS+_S_UNBUFFERED); - -// Nest define the stdiobuf-bases objects. - -#if !defined(vt_stdiobuf) -#ifndef __GNUG__ -// This works for cfront. -#define vt_stdiobuf __vtbl__8stdiobuf -extern char vt_stdiobuf[1]; -#elif _G_DOLLAR_IN_LABEL -#if __GNUC_MAJOR__ > 2 || __GNUC_MINOR__ >= 5 // XXX I'm not sure it was - // introduced in 2.5 -extern char vt_stdiobuf[1] asm(UNDERSCORE "_vt$8stdiobuf"); -#else -extern char vt_stdiobuf[1] asm(UNDERSCORE "_vt$stdiobuf"); -#endif -#else -#if __GNUC_MAJOR__ > 2 || __GNUC_MINOR__ >= 5 // XXX I'm not sure it was - // introduced in 2.5 -extern char vt_stdiobuf[1] asm(UNDERSCORE "_vt.8stdiobuf"); -#else -extern char vt_stdiobuf[1] asm(UNDERSCORE "_vt.stdiobuf"); -#endif -#endif -#endif /* !defined(vt_stdiobuf) */ - -struct _fake_stdiobuf { - struct __streambuf s; - char* vtable; - struct __file_fields f; - FILE *_f; -}; - -#define DEF_STDIOBUF(NAME, FILE, FD, CHAIN, FLAGS) \ - _fake_stdiobuf NAME[1] = {{ \ - FILEBUF_LITERAL(CHAIN, (FLAGS)|_S_UNBUFFERED),\ - vt_stdiobuf, {FD}, FILE}}; - -DEF_STDIOBUF(__stdin_stdiobuf, stdin, 0, (streambuf*)&__std_filebuf_2, - _S_NO_WRITES); -DEF_STDIOBUF(__stdout_stdiobuf, stdout, 1, (streambuf*)__stdin_stdiobuf, - _S_NO_READS); -DEF_STDIOBUF(__stderr_stdiobuf, stderr, 2, (streambuf*)__stdout_stdiobuf, - _S_NO_READS); - -streambuf* streambuf::_list_all = (streambuf*)__stderr_stdiobuf; |