1/*
2 * Copyright (c) 2002-2005 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

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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 __CPRINTF_HH__
33#define __CPRINTF_HH__
34
35#include <iostream>
36#include <list>
37#include <string>
38
39#include "base/cprintf_formats.hh"
40
41namespace cp {
42
43class ArgList
44{
45 private:
46 class Base
47 {
48 public:
49 virtual ~Base() {}
50 virtual void process(std::ostream &out, Format &fmt) = 0;
51 };
52
53 template <typename T>
54 class Node : public Base
55 {
56 public:
57 const T &data;
58
59 public:
60 Node(const T &d) : data(d) {}
61 virtual void process(std::ostream &out, Format &fmt) {
62 switch (fmt.format) {
63 case Format::character:
64 format_char(out, data, fmt);
65 break;
66
67 case Format::integer:
68 format_integer(out, data, fmt);
69 break;
70
71 case Format::floating:
72 format_float(out, data, fmt);
73 break;
74
75 case Format::string:
76 format_string(out, data, fmt);
77 break;
78
79 default:
80 out << "<bad format>";
81 break;
82 }
83 }
84 };
85
86 typedef std::list<Base *> list_t;
87
88 protected:
89 list_t objects;
90 std::ostream *stream;
91
92 public:
93 ArgList() : stream(&std::cout) {}
94 ~ArgList();
95
96 template<class T>
97 void append(const T &data) {
98 Base *obj = new ArgList::Node<T>(data);
99 objects.push_back(obj);
100 }
101
102 template<class T>
103 void prepend(const T &data) {
104 Base *obj = new ArgList::Node<T>(data);
105 objects.push_front(obj);
106 }
107
108 void dump(const std::string &format);
109 void dump(std::ostream &strm, const std::string &fmt)
110 { stream = &strm; dump(fmt); }
111
112 std::string dumpToString(const std::string &format);
113
114 friend ArgList &operator<<(std::ostream &str, ArgList &list);
115};
116
117template<class T>
118inline ArgList &
119operator,(ArgList &alist, const T &data)
120{
121 alist.append(data);
122 return alist;
123}
124
125class ArgListNull {
126};
127
128inline ArgList &
129operator,(ArgList &alist, ArgListNull)
130{ return alist; }
131
132//
133// cprintf(format, args, ...) prints to cout
134// (analogous to printf())
135//
136inline void
137__cprintf(const std::string &format, ArgList &args)
138{ args.dump(format); delete &args; }
139#define __cprintf__(format, ...) \
140 cp::__cprintf(format, (*(new cp::ArgList), __VA_ARGS__))
141#define cprintf(...) \
142 __cprintf__(__VA_ARGS__, cp::ArgListNull())
143
144//
145// ccprintf(stream, format, args, ...) prints to the specified stream
146// (analogous to fprintf())
147//
148inline void
149__ccprintf(std::ostream &stream, const std::string &format, ArgList &args)
150{ args.dump(stream, format); delete &args; }
151#define __ccprintf__(stream, format, ...) \
152 cp::__ccprintf(stream, format, (*(new cp::ArgList), __VA_ARGS__))
153#define ccprintf(stream, ...) \
154 __ccprintf__(stream, __VA_ARGS__, cp::ArgListNull())
155
156//
157// csprintf(format, args, ...) returns a string
158// (roughly analogous to sprintf())
159//
160inline std::string
161__csprintf(const std::string &format, ArgList &args)
162{ std::string s = args.dumpToString(format); delete &args; return s; }
163#define __csprintf__(format, ...) \
164 cp::__csprintf(format, (*(new cp::ArgList), __VA_ARGS__))
165#define csprintf(...) \
166 __csprintf__(__VA_ARGS__, cp::ArgListNull())
167
168}
169
170#endif // __CPRINTF_HH__