1 iomanip |
1 /* |
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2 * © Portions copyright (c) 2006-2007 Nokia Corporation. All rights reserved. |
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3 * Copyright (c) 1999 |
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4 * Silicon Graphics Computer Systems, Inc. |
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5 * |
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6 * Copyright (c) 1999 |
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7 * Boris Fomitchev |
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8 * |
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9 * This material is provided "as is", with absolutely no warranty expressed |
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10 * or implied. Any use is at your own risk. |
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11 * |
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12 * Permission to use or copy this software for any purpose is hereby granted |
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13 * without fee, provided the above notices are retained on all copies. |
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14 * Permission to modify the code and to distribute modified code is granted, |
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15 * provided the above notices are retained, and a notice that the code was |
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16 * modified is included with the above copyright notice. |
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17 * |
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18 */ |
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19 |
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20 #ifndef _STLP_IOMANIP |
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21 #define _STLP_IOMANIP |
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22 |
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23 # ifndef _STLP_OUTERMOST_HEADER_ID |
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24 # define _STLP_OUTERMOST_HEADER_ID 0x1030 |
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25 # include <stl/_prolog.h> |
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26 # endif |
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27 |
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28 # ifdef _STLP_PRAGMA_ONCE |
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29 # pragma once |
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30 # endif |
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31 |
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32 # if defined ( _STLP_OWN_IOSTREAMS ) |
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33 |
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34 # include <stl/_istream.h> // Includes <ostream> and <ios> |
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35 |
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36 _STLP_BEGIN_NAMESPACE |
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37 |
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38 //---------------------------------------------------------------------- |
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39 // Machinery for defining manipulators. |
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40 |
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41 // Class that calls one of ios_base's single-argument member functions. |
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42 template <class _Arg> |
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43 struct _Ios_Manip_1 { |
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44 #ifdef __SYMBIAN32__ |
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45 typedef void (_STLP_CALL *__f_ptr_type)(ios_base&, _Arg); |
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46 #else |
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47 typedef _Arg (ios_base::*__f_ptr_type)(_Arg); |
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48 #endif |
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49 _Ios_Manip_1(__f_ptr_type __f, const _Arg& __arg) |
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50 : _M_f(__f), _M_arg(__arg) |
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51 {} |
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52 |
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53 void operator()(ios_base& __ios) const { |
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54 #ifdef __SYMBIAN32__ |
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55 (*_M_f)(__ios, _M_arg); |
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56 #else |
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57 (__ios.*_M_f)(_M_arg); |
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58 #endif |
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59 } |
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60 |
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61 __f_ptr_type _M_f; |
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62 _Arg _M_arg; |
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63 }; |
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64 |
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65 // Class that calls one of ios_base's two-argument member functions. |
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66 struct _Ios_Setf_Manip { |
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67 ios_base::fmtflags _M_flag; |
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68 ios_base::fmtflags _M_mask; |
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69 bool _M_two_args; |
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70 |
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71 _Ios_Setf_Manip(ios_base::fmtflags __f) |
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72 : _M_flag(__f), _M_mask(0), _M_two_args(false) |
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73 {} |
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74 |
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75 _Ios_Setf_Manip(ios_base::fmtflags __f, ios_base::fmtflags __m) |
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76 : _M_flag(__f), _M_mask(__m), _M_two_args(true) |
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77 {} |
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78 |
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79 void operator()(ios_base& __ios) const { |
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80 if (_M_two_args) |
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81 __ios.setf(_M_flag, _M_mask); |
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82 else |
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83 __ios.setf(_M_flag); |
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84 } |
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85 }; |
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86 |
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87 |
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88 template <class _CharT, class _Traits, class _Arg> |
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89 inline basic_istream<_CharT, _Traits>& _STLP_CALL |
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90 operator>>(basic_istream<_CharT, _Traits>& _SP_in, |
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91 const _Ios_Manip_1<_Arg>& __f) |
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92 { |
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93 __f(_SP_in); |
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94 return _SP_in; |
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95 } |
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96 |
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97 template <class _CharT, class _Traits, class _Arg> |
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98 inline basic_ostream<_CharT, _Traits>& _STLP_CALL |
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99 operator<<(basic_ostream<_CharT, _Traits>& __os, |
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100 const _Ios_Manip_1<_Arg>& __f) |
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101 { |
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102 __f(__os); |
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103 return __os; |
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104 } |
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105 |
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106 template <class _CharT, class _Traits> |
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107 inline basic_istream<_CharT, _Traits>& _STLP_CALL |
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108 operator>>(basic_istream<_CharT, _Traits>& _SP_in, const _Ios_Setf_Manip& __f) |
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109 { |
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110 __f(_SP_in); |
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111 return _SP_in; |
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112 } |
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113 |
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114 template <class _CharT, class _Traits> |
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115 inline basic_ostream<_CharT, _Traits>& _STLP_CALL |
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116 operator<<(basic_ostream<_CharT, _Traits>& __os, const _Ios_Setf_Manip& __f) |
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117 |
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118 { |
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119 __f(__os); |
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120 return __os; |
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121 } |
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122 |
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123 //---------------------------------------------------------------------- |
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124 // The ios_base manipulators. |
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125 |
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126 #ifdef __SYMBIAN32__ |
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127 // setprecision |
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128 static void _STLP_CALL spfun(ios_base& iostr, streamsize prec) |
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129 { // set precision |
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130 iostr.precision(prec); |
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131 } |
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132 |
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133 // setw |
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134 static void _STLP_CALL swfun(ios_base& iostr, streamsize wide) |
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135 { // set width |
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136 iostr.width(wide); |
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137 } |
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138 #endif |
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139 |
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140 inline _Ios_Setf_Manip _STLP_CALL resetiosflags(ios_base::fmtflags __mask) { |
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141 return _Ios_Setf_Manip(0, __mask); |
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142 } |
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143 |
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144 inline _Ios_Setf_Manip _STLP_CALL setiosflags(ios_base::fmtflags __flag) { |
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145 return _Ios_Setf_Manip(__flag); |
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146 } |
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147 |
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148 inline _Ios_Setf_Manip _STLP_CALL setbase(int __n) { |
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149 ios_base::fmtflags __base = __n == 8 ? ios_base::oct : |
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150 __n == 10 ? ios_base::dec : |
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151 __n == 16 ? ios_base::hex : |
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152 ios_base::fmtflags(0); |
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153 return _Ios_Setf_Manip(__base, ios_base::basefield); |
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154 } |
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155 |
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156 inline _Ios_Manip_1<streamsize> _STLP_CALL |
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157 setprecision(int __n) { |
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158 #ifdef __SYMBIAN32__ |
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159 _Ios_Manip_1<streamsize>::__f_ptr_type __f = &spfun; |
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160 #else |
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161 _Ios_Manip_1<streamsize>::__f_ptr_type __f = &ios_base::precision; |
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162 #endif |
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163 return _Ios_Manip_1<streamsize>(__f, __n); |
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164 } |
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165 |
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166 inline _Ios_Manip_1<streamsize> _STLP_CALL |
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167 setw(int __n) { |
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168 #ifdef __SYMBIAN32__ |
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169 _Ios_Manip_1<streamsize>::__f_ptr_type __f = &swfun; |
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170 #else |
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171 _Ios_Manip_1<streamsize>::__f_ptr_type __f = &ios_base::width; |
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172 #endif |
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173 |
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174 return _Ios_Manip_1<streamsize>(__f, __n); |
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175 } |
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176 |
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177 //---------------------------------------------------------------------- |
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178 // setfill, a manipulator that operates on basic_ios<> instead of ios_base. |
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179 |
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180 template <class _CharT> |
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181 struct _Setfill_Manip { |
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182 _Setfill_Manip(_CharT __c) : _M_c(__c) {} |
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183 _CharT _M_c; |
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184 }; |
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185 |
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186 template <class _CharT, class _CharT2, class _Traits> |
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187 inline basic_ostream<_CharT, _Traits>& _STLP_CALL |
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188 operator<<(basic_ostream<_CharT, _Traits>& __os, |
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189 const _Setfill_Manip<_CharT2>& __m) |
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190 { |
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191 __os.fill(__m._M_c); |
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192 return __os; |
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193 } |
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194 |
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195 template <class _CharT, class _CharT2, class _Traits> |
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196 inline basic_istream<_CharT, _Traits>& _STLP_CALL |
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197 operator>>(basic_istream<_CharT, _Traits>& __is, |
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198 const _Setfill_Manip<_CharT2>& __m) |
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199 { |
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200 __is.fill(__m._M_c); |
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201 return __is; |
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202 } |
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203 |
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204 template <class _CharT> |
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205 inline _Setfill_Manip<_CharT> _STLP_CALL |
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206 setfill(_CharT __c) { |
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207 return _Setfill_Manip<_CharT>(__c); |
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208 } |
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209 |
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210 _STLP_END_NAMESPACE |
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211 |
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212 # elif !defined (_STLP_USE_NO_IOSTREAMS) |
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213 # include <wrap_std/iomanip> |
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214 # endif |
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215 |
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216 # if (_STLP_OUTERMOST_HEADER_ID == 0x1030) |
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217 # include <stl/_epilog.h> |
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218 # undef _STLP_OUTERMOST_HEADER_ID |
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219 # endif |
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220 |
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221 #endif /* _STLP_IOMANIP */ |
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222 |
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223 // Local Variables: |
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224 // mode:C++ |
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225 // End: |