Compiling on Cygwin, but not on Dev-C++... Why?
Code:
/*
Obtencao do conjunto potencia de um vector de inteiros.
Autor: Miguel Martins <[email protected]> <[email protected]>
*/
#include <iostream>
#include <vector>
#include <cmath>
using namespace std;
vector< vector<int> > getPowerSet(vector<int> s);
string toBinaryString(int i);
string reverseString(string s);
vector<int> mergeVectorAndString(vector<int> v,string s);
int main() {
vector<int> v;
v.push_back(1);
v.push_back(2);
v.push_back(3);
vector< vector<int> > resultado = getPowerSet(v);
for (unsigned int i=0;i<resultado.size();i++) {
cout << "{";
for (unsigned int j=0;j<resultado[i].size();j++)
cout << resultado[i][j] << " ";
cout << "}" << endl;
}
string end;
cin >> end;
return 0;
}
vector< vector<int> > getPowerSet(vector<int> v) {
vector< vector<int> > power_set;
int number_of_elements = (int)pow((double)2,(double)v.size());
for (int i=0;i<number_of_elements;i++) {
string s = toBinaryString(i);
power_set.push_back(mergeVectorAndString(v,s));
}
return power_set;
}
string toBinaryString(int i) {
string ret;
while(1) {
int foo = i % 2;
ret += (foo + '0');
i /= 2;
if (i==0) break;
}
ret = reverseString(ret);
return ret;
}
string reverseString(string s) {
int n = s.size();
for (int i=0;i<n/2;i++) {
char foo = s[i];
s[i] = s[n-i-1];
s[n-i-1] = foo;
}
return s;
}
vector<int> mergeVectorAndString(vector<int> v,string s) {
vector<int> ret;
string s1;
for (unsigned int i=0;i<(v.size()-s.size());i++) s1 += "0";
s1 += s;
for (unsigned int i=0;i<s1.size();i++) if (s1[i]=='1') ret.push_back(v[i]);
return ret;
}
Apparently, this compiles correctly on Cygwin, using g++, but not on Dev-C++.
Dev-C++ gives me the following error:
[Linker error] undefined reference to `__cpu_features_init'
Can you guys successfully compile this under Dev-C++? Do you have to make any changes in order to accomplish that? Please let me know.
