1/*
2 * Copyright (c) 2014 ARM Limited
3 * Copyright (c) 2002-2006 The Regents of The University of Michigan
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * Authors: Nathan Binkert
30 *          Steve Reinhardt
31 *          Andreas Sandberg
32 */
33
34#ifndef __BASE_CPRINTF_HH__
35#define __BASE_CPRINTF_HH__
36
37#include <ios>
38#include <iostream>
39#include <list>
40#include <string>
41
42#include "base/cprintf_formats.hh"
43
44namespace cp {
45
46struct Print
47{
48  protected:
49    std::ostream &stream;
50    const char *format;
51    const char *ptr;
52    bool cont;
53
54    std::ios::fmtflags saved_flags;
55    char saved_fill;
56    int saved_precision;
57    int saved_width;
58
59    Format fmt;
60    void process();
61    void process_flag();
62
63  public:
64    Print(std::ostream &stream, const std::string &format);
65    Print(std::ostream &stream, const char *format);
66    ~Print();
67
68    int
69    get_number(int data)
70    {
71        return data;
72    }
73
74    template <typename T>
75    int
76    get_number(const T& data)
77    {
78        return 0;
79    }
80
81    template <typename T>
82    void
83    add_arg(const T &data)
84    {
85        if (!cont)
86            process();
87
88        if (fmt.get_width) {
89            fmt.get_width = false;
90            cont = true;
91            fmt.width = get_number(data);
92            return;
93        }
94
95        if (fmt.get_precision) {
96            fmt.get_precision = false;
97            cont = true;
98            fmt.precision = get_number(data);
99            return;
100        }
101
102        switch (fmt.format) {
103          case Format::character:
104            format_char(stream, data, fmt);
105            break;
106
107          case Format::integer:
108            format_integer(stream, data, fmt);
109            break;
110
111          case Format::floating:
112            format_float(stream, data, fmt);
113            break;
114
115          case Format::string:
116            format_string(stream, data, fmt);
117            break;
118
119          default:
120            stream << "<bad format>";
121            break;
122        }
123    }
124
125    void end_args();
126};
127
128} // namespace cp
129
130inline void
131ccprintf(cp::Print &print)
132{
133    print.end_args();
134}
135
136
137template<typename T, typename ...Args> void
138ccprintf(cp::Print &print, const T &value, const Args &...args)
139{
140    print.add_arg(value);
141
142    ccprintf(print, args...);
143}
144
145
146template<typename ...Args> void
147ccprintf(std::ostream &stream, const char *format, const Args &...args)
148{
149    cp::Print print(stream, format);
150
151    ccprintf(print, args...);
152}
153
154
155template<typename ...Args> void
156cprintf(const char *format, const Args &...args)
157{
158    ccprintf(std::cout, format, args...);
159}
160
161template<typename ...Args> std::string
162csprintf(const char *format, const Args &...args)
163{
164    std::stringstream stream;
165    ccprintf(stream, format, args...);
166    return stream.str();
167}
168
169/*
170 * functions again with std::string.  We have both so we don't waste
171 * time converting const char * to std::string since we don't take
172 * advantage of it.
173 */
174template<typename ...Args> void
175ccprintf(std::ostream &stream, const std::string &format, const Args &...args)
176{
177    ccprintf(stream, format.c_str(), args...);
178}
179
180template<typename ...Args> void
181cprintf(const std::string &format, const Args &...args)
182{
183    ccprintf(std::cout, format.c_str(), args...);
184}
185
186template<typename ...Args> std::string
187csprintf(const std::string &format, const Args &...args)
188{
189    return csprintf(format.c_str(), args...);
190}
191
192#endif // __CPRINTF_HH__
193