williamr@4: /*
williamr@4:  * Copyright (c) 1999
williamr@4:  * Silicon Graphics Computer Systems, Inc.
williamr@4:  *
williamr@4:  * Copyright (c) 1999
williamr@4:  * Boris Fomitchev
williamr@4:  *
williamr@4:  * This material is provided "as is", with absolutely no warranty expressed
williamr@4:  * or implied. Any use is at your own risk.
williamr@4:  *
williamr@4:  * Permission to use or copy this software for any purpose is hereby granted
williamr@4:  * without fee, provided the above notices are retained on all copies.
williamr@4:  * Permission to modify the code and to distribute modified code is granted,
williamr@4:  * provided the above notices are retained, and a notice that the code was
williamr@4:  * modified is included with the above copyright notice.
williamr@4:  *
williamr@4:  */
williamr@4: 
williamr@4: #ifndef _STLP_IOMANIP
williamr@4: #define _STLP_IOMANIP
williamr@4: 
williamr@4: #ifndef _STLP_OUTERMOST_HEADER_ID
williamr@4: #  define _STLP_OUTERMOST_HEADER_ID 0x1030
williamr@4: #  include <stl/_prolog.h>
williamr@4: #endif
williamr@4: 
williamr@4: #ifdef _STLP_PRAGMA_ONCE
williamr@4: #  pragma once
williamr@4: #endif
williamr@4: 
williamr@4: #include <stl/_ioserr.h>
williamr@4: #include <stl/_istream.h>              // includes <ostream> and <ios>
williamr@4: 
williamr@4: _STLP_BEGIN_NAMESPACE
williamr@4: 
williamr@4: //----------------------------------------------------------------------
williamr@4: // Machinery for defining manipulators.
williamr@4: 
williamr@4: // Class that calls one of ios_base's single-argument member functions.
williamr@4: template <class _Arg>
williamr@4: struct _Ios_Manip_1 {
williamr@4:    typedef _Arg (ios_base::*__f_ptr_type)(_Arg);
williamr@4: 
williamr@4:   _Ios_Manip_1(__f_ptr_type __f, const _Arg& __arg)
williamr@4:     : _M_f(__f), _M_arg(__arg) {}
williamr@4: 
williamr@4:   void operator()(ios_base& __ios) const
williamr@4:   { (__ios.*_M_f)(_M_arg); }
williamr@4: 
williamr@4:   __f_ptr_type _M_f;
williamr@4:   _Arg _M_arg;
williamr@4: };
williamr@4: 
williamr@4: // Class that calls one of ios_base's two-argument member functions.
williamr@4: struct _Ios_Setf_Manip {
williamr@4:   ios_base::fmtflags _M_flag;
williamr@4:   ios_base::fmtflags _M_mask;
williamr@4:   bool _M_two_args;
williamr@4: 
williamr@4:   _Ios_Setf_Manip(ios_base::fmtflags __f)
williamr@4:     : _M_flag(__f), _M_mask(0), _M_two_args(false) {}
williamr@4: 
williamr@4:   _Ios_Setf_Manip(ios_base::fmtflags __f, ios_base::fmtflags __m)
williamr@4:     : _M_flag(__f), _M_mask(__m), _M_two_args(true) {}
williamr@4: 
williamr@4:   void operator()(ios_base& __ios) const {
williamr@4:     if (_M_two_args)
williamr@4:       __ios.setf(_M_flag, _M_mask);
williamr@4:     else
williamr@4:       __ios.setf(_M_flag);
williamr@4:   }
williamr@4: };
williamr@4: 
williamr@4: 
williamr@4: template <class _CharT, class _Traits, class _Arg>
williamr@4: inline basic_istream<_CharT, _Traits>& _STLP_CALL
williamr@4: operator>>(basic_istream<_CharT, _Traits>& __istr,
williamr@4:            const _Ios_Manip_1<_Arg>& __f) {
williamr@4:   __f(__istr);
williamr@4:   return __istr;
williamr@4: }
williamr@4: 
williamr@4: template <class _CharT, class _Traits, class _Arg>
williamr@4: inline basic_ostream<_CharT, _Traits>& _STLP_CALL
williamr@4: operator<<(basic_ostream<_CharT, _Traits>& __os,
williamr@4:            const _Ios_Manip_1<_Arg>& __f) {
williamr@4:   __f(__os);
williamr@4:   return __os;
williamr@4: }
williamr@4: 
williamr@4: template <class _CharT, class _Traits>
williamr@4: inline basic_istream<_CharT, _Traits>& _STLP_CALL
williamr@4: operator>>(basic_istream<_CharT, _Traits>& __istr, const _Ios_Setf_Manip& __f) {
williamr@4:   __f(__istr);
williamr@4:   return __istr;
williamr@4: }
williamr@4: 
williamr@4: template <class _CharT, class _Traits>
williamr@4: inline basic_ostream<_CharT, _Traits>& _STLP_CALL
williamr@4: operator<<(basic_ostream<_CharT, _Traits>& __os, const _Ios_Setf_Manip& __f) {
williamr@4:   __f(__os);
williamr@4:   return __os;
williamr@4: }
williamr@4: 
williamr@4: //----------------------------------------------------------------------
williamr@4: // The ios_base manipulators.
williamr@4: inline _Ios_Setf_Manip  _STLP_CALL resetiosflags(ios_base::fmtflags __mask)
williamr@4: { return _Ios_Setf_Manip(0, __mask); }
williamr@4: 
williamr@4: inline _Ios_Setf_Manip _STLP_CALL setiosflags(ios_base::fmtflags __flag)
williamr@4: { return _Ios_Setf_Manip(__flag); }
williamr@4: 
williamr@4: inline _Ios_Setf_Manip _STLP_CALL setbase(int __n) {
williamr@4:   ios_base::fmtflags __base = __n == 8  ? ios_base::oct :
williamr@4:                               __n == 10 ? ios_base::dec :
williamr@4:                               __n == 16 ? ios_base::hex :
williamr@4:                               ios_base::fmtflags(0);
williamr@4:   return _Ios_Setf_Manip(__base, ios_base::basefield);
williamr@4: }
williamr@4: 
williamr@4: inline _Ios_Manip_1<streamsize> _STLP_CALL
williamr@4: setprecision(int __n) {
williamr@4:   _Ios_Manip_1<streamsize>::__f_ptr_type __f = &ios_base::precision;
williamr@4:   return _Ios_Manip_1<streamsize>(__f, __n);
williamr@4: }
williamr@4: 
williamr@4: inline _Ios_Manip_1<streamsize>  _STLP_CALL
williamr@4: setw(int __n) {
williamr@4:   _Ios_Manip_1<streamsize>::__f_ptr_type __f = &ios_base::width;  
williamr@4:   return _Ios_Manip_1<streamsize>(__f, __n);
williamr@4: }
williamr@4: 
williamr@4: //----------------------------------------------------------------------
williamr@4: // setfill, a manipulator that operates on basic_ios<> instead of ios_base.
williamr@4: 
williamr@4: template <class _CharT>
williamr@4: struct _Setfill_Manip {
williamr@4:   _Setfill_Manip(_CharT __c) : _M_c(__c) {}
williamr@4:   _CharT _M_c;
williamr@4: };
williamr@4: 
williamr@4: template <class _CharT, class _CharT2, class _Traits>
williamr@4: inline basic_ostream<_CharT, _Traits>& _STLP_CALL
williamr@4: operator<<(basic_ostream<_CharT, _Traits>& __os,
williamr@4:            const _Setfill_Manip<_CharT2>& __m) {
williamr@4:   __os.fill(__m._M_c);
williamr@4:   return __os;
williamr@4: }
williamr@4: 
williamr@4: template <class _CharT, class _CharT2, class _Traits>
williamr@4: inline basic_istream<_CharT, _Traits>& _STLP_CALL
williamr@4: operator>>(basic_istream<_CharT, _Traits>& __is,
williamr@4:            const _Setfill_Manip<_CharT2>& __m) {
williamr@4:   __is.fill(__m._M_c);
williamr@4:   return __is;
williamr@4: }
williamr@4: 
williamr@4: template <class _CharT>
williamr@4: inline _Setfill_Manip<_CharT> _STLP_CALL
williamr@4: setfill(_CharT __c) {
williamr@4:   return _Setfill_Manip<_CharT>(__c);
williamr@4: }
williamr@4: 
williamr@4: _STLP_END_NAMESPACE
williamr@4: 
williamr@4: #if (_STLP_OUTERMOST_HEADER_ID == 0x1030)
williamr@4: #  include <stl/_epilog.h>
williamr@4: #  undef _STLP_OUTERMOST_HEADER_ID
williamr@4: #endif
williamr@4: 
williamr@4: #endif /* _STLP_IOMANIP */
williamr@4: 
williamr@4: // Local Variables:
williamr@4: // mode:C++
williamr@4: // End: