C++

Forum

 
Compiler issues beginner

ilikeapplesmore (2)
Hello, I'm learning how to code c++. I'm using programming principles and practice using c++, by Bjarne Stroustrup. As my compiler, i have a mac, so i'm using xcode.
at the beginning of the book around 50 pages into it. it says that you should add std_lib_facilities.h to your compiler so that it can be included. it wasn't until chapter 5 that i finally figured out what he was talking about and realized that i actually needed them, otherwise the command "error" and "simple_error" won't work, and are just "unidentified variables" if i don't add the "std_lib_facilities.h". i figured that you needed to create a txt file and change the extension to ".h" and simply drag it to xcode. however, when i was trying to run some exercises i got two errors.. the first "{\rtf1\ansi\ansicpg1252\cocoartf1265" "Parse issue expected unqualified id" and the second, "Lexical or Preprocessor issue" "Incomplete universal character name ; treating as '\' followed by identifier"
all coming from the "std_lib_facilities.h" file that i added. now, i have no idea of what happened and all of this happened after i tried to run a program, i don't even know of where my code went, and or what to do.
i've been stuck here for 3 days now. can someone help me or point me in the right direction as to what to do? is the "std_lib_facilities.h" code provided outdated or does it not work with xcode?? any ideas? suggestions? should i use a different compiler?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
 
  /*
	simple "Programming: Principles and Practice using C++" course header to
	be used for the first few weeks.
	It provides the most common standard headers (in the global namespace)
	and minimal exception/error support.

	Students: please don't try to understand the details of headers just yet.
	All will be explained. This header is primarily used so that you don't have
	to understand every concept all at once.

	Revised April 25, 2010: simple_error() added
*/

#ifndef H112
#define H112 201004L

#include<iostream>
#include<fstream>
#include<sstream>
#include<cmath>
#include<cstdlib>
#include<string>
#include<list>
#include<vector>
#include<algorithm>
#include<stdexcept>

//------------------------------------------------------------------------------

#ifdef _MSC_VER
#include <hash_map>
using stdext::hash_map;
#else
#include <ext/hash_map>
using __gnu_cxx::hash_map;

namespace __gnu_cxx {

    template<> struct hash<std::string>
    {
        size_t operator()(const std::string& s) const
        {
            return hash<char*>()(s.c_str());
        }
    };

} // of namespace __gnu_cxx
#endif

//------------------------------------------------------------------------------

#define unordered_map hash_map

//------------------------------------------------------------------------------

typedef long Unicode;

//------------------------------------------------------------------------------

using namespace std;

template<class T> string to_string(const T& t)
{
	ostringstream os;
	os << t;
	return os.str();
}

struct Range_error : out_of_range {	// enhanced vector range error reporting
	int index;
	Range_error(int i) :out_of_range("Range error: "+to_string(i)), index(i) { }
};


// trivially range-checked vector (no iterator checking):
template< class T> struct Vector : public std::vector<T> {
	typedef typename std::vector<T>::size_type size_type;

	Vector() { }
	explicit Vector(size_type n) :std::vector<T>(n) {}
	Vector(size_type n, const T& v) :std::vector<T>(n,v) {}
	template <class I>
	Vector(I first, I last) :std::vector<T>(first,last) {}

	T& operator[](unsigned int i) // rather than return at(i);
	{
		if (i<0||this->size()<=i) throw Range_error(i);
		return std::vector<T>::operator[](i);
	}
	const T& operator[](unsigned int i) const
	{
		if (i<0||this->size()<=i) throw Range_error(i);
		return std::vector<T>::operator[](i);
	}
};

// disgusting macro hack to get a range checked vector:
#define vector Vector

// trivially range-checked string (no iterator checking):
struct String : std::string {
	
	String() { }
	String(const char* p) :std::string(p) {}
	String(const string& s) :std::string(s) {}
	template<class S> String(S s) :std::string(s) {}
	String(int sz, char val) :std::string(sz,val) {}
	template<class Iter> String(Iter p1, Iter p2) : std::string(p1,p2) { }

	char& operator[](unsigned int i) // rather than return at(i);
	{
		if (i<0||size()<=i) throw Range_error(i);
		return std::string::operator[](i);
	}

	const char& operator[](unsigned int i) const
	{
		if (i<0||size()<=i) throw Range_error(i);
		return std::string::operator[](i);
	}
};

#ifndef _MSC_VER
namespace __gnu_cxx {

    template<> struct hash<String>
    {
        size_t operator()(const String& s) const
        {
            return hash<std::string>()(s);
        }
    };

} // of namespace __gnu_cxx
#endif


struct Exit : runtime_error {
	Exit(): runtime_error("Exit") {}
};

// error() simply disguises throws:
inline void error(const string& s)
{
	throw runtime_error(s);
}

inline void error(const string& s, const string& s2)
{
	error(s+s2);
}

inline void error(const string& s, int i)
{
	ostringstream os;
	os << s <<": " << i;
	error(os.str());
}

#if _MSC_VER<1500
	// disgusting macro hack to get a range checked string:
	#define string String
	// MS C++ 9.0 have a built-in assert for string range check
	// and uses "std::string" in several places so that macro substitution fails
#endif

template<class T> char* as_bytes(T& i)	// needed for binary I/O
{
	void* addr = &i;	// get the address of the first byte
						// of memory used to store the object
	return static_cast<char*>(addr); // treat that memory as bytes
}


inline void keep_window_open()
{
	cin.clear();
	cout << "Please enter a character to exit\n";
	char ch;
	cin >> ch;
	return;
}

inline void keep_window_open(string s)
{
	if (s=="") return;
	cin.clear();
	cin.ignore(120,'\n');
	for (;;) {
		cout << "Please enter " << s << " to exit\n";
		string ss;
		while (cin >> ss && ss!=s)
			cout << "Please enter " << s << " to exit\n";
		return;
	}
}



// error function to be used (only) until error() is introduced in Chapter 5:
inline void simple_error(string s)	// write ``error: s�� and exit program
{
	cerr << "error: " << s << '\n';
	keep_window_open();		// for some Windows environments
	exit(1);
}

// make std::min() and std::max() accessible:
#undef min
#undef max

#include<iomanip>
inline ios_base& general(ios_base& b)	// to augment fixed and scientific
{
	b.setf(ios_base::fmtflags(0),ios_base::floatfield);
	return b;
}

// run-time checked narrowing cast (type conversion):
template<class R, class A> R narrow_cast(const A& a)
{
	R r = R(a);
	if (A(r)!=a) error(string("info loss"));
	return r;
}


inline int randint(int max) { return rand()%max; }

inline int randint(int min, int max) { return randint(max-min)+min; }

inline double sqrt(int x) { return sqrt(double(x)); }	// to match C++0x

#endif
Aceix (1118)
Looks like its depracated.

Aceix.
closed account (iAk3T05o)
I too am using that book (pdf) but on windows, vs. I don't know what that code is. I don't use the std facilities stuff. For cout and cin, i use <iostream>, for strings, i use <string> and i just entered vectors today.
Topic archived. No new replies allowed.