cprintf.hh revision 9331
1/* 2 * Copyright (c) 2002-2006 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 * Steve Reinhardt 30 */ 31 32#ifndef __BASE_CPRINTF_HH__ 33#define __BASE_CPRINTF_HH__ 34 35#include <ios> 36#include <iostream> 37#include <list> 38#include <string> 39 40#include "base/cprintf_formats.hh" 41#include "base/varargs.hh" 42 43namespace cp { 44 45#define CPRINTF_DECLARATION VARARGS_DECLARATION(cp::Print) 46#define CPRINTF_DEFINITION VARARGS_DEFINITION(cp::Print) 47 48struct Print 49{ 50 protected: 51 std::ostream &stream; 52 const char *format; 53 const char *ptr; 54 bool cont; 55 56 std::ios::fmtflags saved_flags; 57 char saved_fill; 58 int saved_precision; 59 60 Format fmt; 61 void process(); 62 void process_flag(); 63 64 public: 65 Print(std::ostream &stream, const std::string &format); 66 Print(std::ostream &stream, const char *format); 67 ~Print(); 68 69 int 70 get_number(int data) 71 { 72 return data; 73 } 74 75 template <typename T> 76 int 77 get_number(const T& data) 78 { 79 return 0; 80 } 81 82 template <typename T> 83 void 84 add_arg(const T &data) 85 { 86 if (!cont) 87 process(); 88 89 if (fmt.get_width) { 90 fmt.get_width = false; 91 cont = true; 92 fmt.width = get_number(data); 93 return; 94 } 95 96 if (fmt.get_precision) { 97 fmt.get_precision = false; 98 cont = true; 99 fmt.precision = get_number(data); 100 return; 101 } 102 103 switch (fmt.format) { 104 case Format::character: 105 format_char(stream, data, fmt); 106 break; 107 108 case Format::integer: 109 format_integer(stream, data, fmt); 110 break; 111 112 case Format::floating: 113 format_float(stream, data, fmt); 114 break; 115 116 case Format::string: 117 format_string(stream, data, fmt); 118 break; 119 120 default: 121 stream << "<bad format>"; 122 break; 123 } 124 } 125 126 void end_args(); 127}; 128 129} // namespace cp 130 131typedef VarArgs::List<cp::Print> CPrintfArgsList; 132 133inline void 134ccprintf(std::ostream &stream, const char *format, const CPrintfArgsList &args) 135{ 136 cp::Print print(stream, format); 137 args.add_args(print); 138} 139 140inline void 141ccprintf(std::ostream &stream, const char *format, CPRINTF_DECLARATION) 142{ 143 cp::Print print(stream, format); 144 VARARGS_ADDARGS(print); 145} 146 147inline void 148cprintf(const char *format, CPRINTF_DECLARATION) 149{ 150 ccprintf(std::cout, format, VARARGS_ALLARGS); 151} 152 153inline std::string 154csprintf(const char *format, CPRINTF_DECLARATION) 155{ 156 std::stringstream stream; 157 ccprintf(stream, format, VARARGS_ALLARGS); 158 return stream.str(); 159} 160 161/* 162 * functions again with std::string. We have both so we don't waste 163 * time converting const char * to std::string since we don't take 164 * advantage of it. 165 */ 166inline void 167ccprintf(std::ostream &stream, const std::string &format, 168 const CPrintfArgsList &args) 169{ 170 ccprintf(stream, format.c_str(), args); 171} 172 173inline void 174ccprintf(std::ostream &stream, const std::string &format, CPRINTF_DECLARATION) 175{ 176 ccprintf(stream, format.c_str(), VARARGS_ALLARGS); 177} 178 179inline void 180cprintf(const std::string &format, CPRINTF_DECLARATION) 181{ 182 ccprintf(std::cout, format.c_str(), VARARGS_ALLARGS); 183} 184 185inline std::string 186csprintf(const std::string &format, CPRINTF_DECLARATION) 187{ 188 std::stringstream stream; 189 ccprintf(stream, format.c_str(), VARARGS_ALLARGS); 190 return stream.str(); 191} 192 193#endif // __CPRINTF_HH__ 194