摘要:STL stinrg lifetime
std::string AA()
{
std::string bb = "cc";
return bb;
}
void BB()
{
const char*l_str = AA().c_str(); //wrong,string destruction is called,then data is not right
char ABC[260];
sprintf(ABC,"%s",AA().c_str()); //right,because destruction call is aftter sprintf
std::string BB = AA(); //right
}
