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
|
#include <inttypes.h>
#include <unistd.h>
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <vector>
#include <string>
#include "helpers.hpp"
#include <set>
#include <sstream>
const char* vectorToString(const std::vector<std::string>& vec, const std::string separator) {
// Concatenate all strings in the vector
std::string result;
for (const auto& str : vec) {
result += str;
}
const char* cstr = result.c_str();
return cstr;
}
const char* vectorToString(const std::vector<uint32_t>& vec, const std::string separator) {
// Calculate the size needed for the result string
size_t size = 0;
for (size_t i = 0; i < vec.size(); ++i) {
// Calculate the number of digits in each element
size += snprintf(nullptr, 0, "%u", vec[i]);
// Add comma and space for all elements except the last one
if (i < vec.size() - 1) {
size += 2; // comma and space
}
}
// Allocate memory for the result string
char* result = static_cast<char*>(malloc(size + 1));
if (result == nullptr) {
// Handle memory allocation failure
return nullptr;
}
// Fill in the result string
char* current = result;
for (size_t i = 0; i < vec.size(); ++i) {
// Convert each element to string and copy to the result string
int written = snprintf(current, size + 1, "%u", vec[i]);
current += written;
// Add comma and space for all elements except the last one
if (i < vec.size() - 1) {
strcpy(current, ", ");
current += 2;
}
}
return result;
}
const char* vectorToString(const std::vector<std::set<uint32_t>>& vec, const std::string separator) {
// Check if the vector is empty
if (vec.empty()) {
return "";
}
// Use a stringstream to concatenate sets with commas and individual elements with spaces
std::ostringstream oss;
oss << "{";
for (auto it = vec.begin(); it != vec.end(); ++it) {
if (it != vec.begin()) {
oss << separator;
}
oss << "{";
for (auto setIt = it->begin(); setIt != it->end(); ++setIt) {
if (setIt != it->begin()) {
oss << separator;
}
oss << *setIt;
}
oss << "}";
}
oss << "}";
std::string str = oss.str();
const std::string::size_type size = str.size();
char *buffer = new char[size + 1]; //we need extra char for NUL
memcpy(buffer, str.c_str(), size + 1);
return buffer;
}
|