Hi

Little confused. How to most simple output all matches. For ex. .m_airport_map contains LSZA, LSZB, LSZH and many more. Now I want to

show by giving L as name all starting with L, giving LS all starting with LS etc.

Many thanks

for (auto it = test.m_airport_map.begin(); it != test.m_airport_map.end(); it++)
{

auto mapEntry = (*it);
// std::cout << mapEntry.first << std::endl;

std::smatch m;
std::regex e ("(name.c_str())(.*)");

std::regex_match ( mapEntry.first, m, e );

std::cout << "matches:" << std::endl;
for (std::smatch::iterator it = m.begin(); it!=m.end(); ++it) {
std::cout << *it << std::endl;
}

}

std::regex e ("(name.c_str())(.*)");

Cannot figure it out. Any help? Thanks

Cannot figure it out. Any help? Thanks

#include <string>
#include <iostream>

using namespace std;

int main() {
    string str = "world";
    string expr = "Hello, (str)! Expression: (4*2./20)";

    cout << str << endl;
    cout << expr << endl;
}

#include <iostream>
#include <sstream>
#include <string>

using namespace std;

int main() {
    string str = "world";
    ostringstream temp;
    temp << "Hello, " << str << "! Expression: " << (4*2./20);
    string expr = temp.str();

    cout << str << endl;
    cout << expr << endl;
}

Thanks Bregma but even debugging through I saw LS* airports for mapEntry.first in debugger which were not found.

vector<Flughafen*> loopAirportpush(const string &name)
{

std::regex re("^LS"); // I want to use name here
for (auto it = test.m_airport_map.begin(); it != test.m_airport_map.end(); it++)
{

auto mapEntry = (*it);

if (std::regex_search(mapEntry.first, re))
{
std::cout << mapEntry.first << "\n";
}

std::regex e ("(0)(.*)");

the above seems to work if 0 is the first char. Now I need to integrate the string name. Well I have a look tomorrow if nobody is faster.

something alike:

std::regex e ("("name.c_str()")(.*)");

is wrong. any ideas?