c_cpp 遍历MAP

Posted 2021-05-14

#include <map>
...
std::map<std::string, int>::const_iterator it = m.begin();
while (it != m.end())
{
    it->first;
    it->second;
    ++it;
}

//! clear map memory
std::map<unsigned int, CDeviceContext *> m_mapDevices;

for (auto it = m_mapDevices.begin(); it != m_mapDevices.end();) {
	delete it->second, it->second = nullptr;
	m_mapDevices.erase(it++);
}