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STLPORT/stlport/iomanip

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