#include <iostream>
#include <map>
#include <algorithm>
#include <vector>
#include <string>
using namespace std;
class finder
{
public:
finder(const std::string &cmp_string) :s_(cmp_string){}
bool operator ()(const std::map<int, std::string>::value_type &item)
{
return item.second == s_;
}
private:
const std::string &s_;
};
int main()
{
map<uint32_t, string> t;
t.insert(std::make_pair(1, "cpu_syscall_pid"));
t.insert(std::make_pair(2, "cpu_syscall_cpu"));
t.insert(std::make_pair(3, "cpu_syscall_sys"));
t.insert(std::make_pair(4, "cpu_contxt_pid"));
int n = 0;
auto it = std::find_if(t.begin(), t.end(), finder("cpu_syscall_pid"));
if (it != t.end())
{
n = (*it).first;
}
cout << "n:" << n << endl;
return 0;
}