File: strings.cc

package info (click to toggle)
c%2B%2B-annotations 8.2.0-1
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 11,804 kB
  • ctags: 2,845
  • sloc: cpp: 15,418; makefile: 2,473; ansic: 165; perl: 90; sh: 29
file content (56 lines) | stat: -rw-r--r-- 1,011 bytes parent folder | download
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
#include <string>
#include <cstring>

class Strings
{
    std::string *d_memory;
    size_t d_size;
    size_t d_capacity;

    public:
        Strings(Strings &&tmp);
        ~Strings();
        void reserve(size_t request);
        void append(std::string const &next);

    private:
        void reserve();
};

//RESERVE
void Strings::reserve()
{
    using std::string;

    string *newMemory =
        static_cast<string *>(memcpy(
                                 operator new(d_capacity),
                                 d_memory,
                                 d_size * sizeof(string)
                             ));

    delete d_memory;
    d_memory = newMemory;
}
//=

//APPEND
void Strings::append(std::string const &next)
{
    reserve(d_size + 1);
    new (d_memory + d_size) std::string(next);
    ++d_size;
}
//=

Strings::~Strings()
{
    using std::string;

//DESTROY
    for (string *sp = d_memory + d_size; sp-- != d_memory; )
        sp->~string();

    operator delete(d_memory);
//=
}