Mixing
c++ map class's in value
0
I need to make map with value of class's. Now it's look like:
if (string=="Reg") {
Registration Registration(Data);
Registration.GetResult();
}
if (string=="Auth") {
Login Login(Data);
Login.GetResult();
}
.....
and I would like to do like:
map <std::string, class_name> ClassList;
ClassList ["Reg"] = Registration;
ClassList ["Auth"] = Login;
......
ClassList [string](Data).GetResult();
Thanks for help!
c++ class
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
add a comment |
0
I need to make map with value of class's. Now it's look like:
if (string=="Reg") {
Registration Registration(Data);
Registration.GetResult();
}
if (string=="Auth") {
Login Login(Data);
Login.GetResult();
}
.....
and I would like to do like:
map <std::string, class_name> ClassList;
ClassList ["Reg"] = Registration;
ClassList ["Auth"] = Login;
......
ClassList [string](Data).GetResult();
Thanks for help!
c++ class
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
add a comment |
0
0
0
I need to make map with value of class's. Now it's look like:
if (string=="Reg") {
Registration Registration(Data);
Registration.GetResult();
}
if (string=="Auth") {
Login Login(Data);
Login.GetResult();
}
.....
and I would like to do like:
map <std::string, class_name> ClassList;
ClassList ["Reg"] = Registration;
ClassList ["Auth"] = Login;
......
ClassList [string](Data).GetResult();
Thanks for help!
c++ class
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
I need to make map with value of class's. Now it's look like:
if (string=="Reg") {
Registration Registration(Data);
Registration.GetResult();
}
if (string=="Auth") {
Login Login(Data);
Login.GetResult();
}
.....
and I would like to do like:
map <std::string, class_name> ClassList;
ClassList ["Reg"] = Registration;
ClassList ["Auth"] = Login;
......
ClassList [string](Data).GetResult();
Thanks for help!
c++ class
c++ class
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
asked Nov 22 '18 at 9:51
user1786639user1786639
4410
4410
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
4
One way is to have a (unordered?) map of functions:
std::unordered_map<std::string, std::function<void(DataCls)>> map;
map["Reg"] = (DataCls Data) {
Registration Registration(Data);
Registration.GetResult();
};
map["Auth"] = (DataCls Data) {
Login Login(Data);
Login.GetResult();
};
...
map[string](Data);
This can be simplified with this templated function:
template<class T>
void Handler(DataCls Data) {
T instance(Data);
instance.GetResult();
};
map["Reg"] = Handler<Registration>;
map["Auth"] = Handler<Login>;
...
map[string](Data);
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
thanks, and how to initialize map for map["Reg"] = Handler<Registration>?
– user1786639
Nov 22 '18 at 10:24
@user1786639 I'm not sure what you mean? The code I've posted should do what you are looking for, no additional initialization is needed.
– freakish
Nov 22 '18 at 10:38
what is DataCls?
– user1786639
Nov 22 '18 at 10:44
@user1786639 whatever yourDataobject is.
– freakish
Nov 22 '18 at 11:06
Thanks! It's work!
– user1786639
Nov 22 '18 at 15:04
add a comment |
1
I would recommend the following inheritance hierarchy:
#include <iostream>
#include <string>
#include <map>
class IOperation
{
public:
virtual ~IOperation(){}
virtual int GetResult() = 0;
};
class Registration : public IOperation
{
public:
int GetResult() override
{
return 1;
}
};
class Login : public IOperation
{
public:
int GetResult() override
{
return 2;
}
};
int main()
{
std::map<std::string, IOperation *> classList;
classList["Reg"] = new Registration();
classList["Auth"] = new Login();
std::string cmd = "Auth";
std::cout << classList[cmd]->GetResult();
}
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
4
One way is to have a (unordered?) map of functions:
std::unordered_map<std::string, std::function<void(DataCls)>> map;
map["Reg"] = (DataCls Data) {
Registration Registration(Data);
Registration.GetResult();
};
map["Auth"] = (DataCls Data) {
Login Login(Data);
Login.GetResult();
};
...
map[string](Data);
This can be simplified with this templated function:
template<class T>
void Handler(DataCls Data) {
T instance(Data);
instance.GetResult();
};
map["Reg"] = Handler<Registration>;
map["Auth"] = Handler<Login>;
...
map[string](Data);
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
thanks, and how to initialize map for map["Reg"] = Handler<Registration>?
– user1786639
Nov 22 '18 at 10:24
@user1786639 I'm not sure what you mean? The code I've posted should do what you are looking for, no additional initialization is needed.
– freakish
Nov 22 '18 at 10:38
what is DataCls?
– user1786639
Nov 22 '18 at 10:44
@user1786639 whatever yourDataobject is.
– freakish
Nov 22 '18 at 11:06
Thanks! It's work!
– user1786639
Nov 22 '18 at 15:04
add a comment |
4
One way is to have a (unordered?) map of functions:
std::unordered_map<std::string, std::function<void(DataCls)>> map;
map["Reg"] = (DataCls Data) {
Registration Registration(Data);
Registration.GetResult();
};
map["Auth"] = (DataCls Data) {
Login Login(Data);
Login.GetResult();
};
...
map[string](Data);
This can be simplified with this templated function:
template<class T>
void Handler(DataCls Data) {
T instance(Data);
instance.GetResult();
};
map["Reg"] = Handler<Registration>;
map["Auth"] = Handler<Login>;
...
map[string](Data);
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
thanks, and how to initialize map for map["Reg"] = Handler<Registration>?
– user1786639
Nov 22 '18 at 10:24
@user1786639 I'm not sure what you mean? The code I've posted should do what you are looking for, no additional initialization is needed.
– freakish
Nov 22 '18 at 10:38
what is DataCls?
– user1786639
Nov 22 '18 at 10:44
@user1786639 whatever yourDataobject is.
– freakish
Nov 22 '18 at 11:06
Thanks! It's work!
– user1786639
Nov 22 '18 at 15:04
add a comment |
4
4
4
One way is to have a (unordered?) map of functions:
std::unordered_map<std::string, std::function<void(DataCls)>> map;
map["Reg"] = (DataCls Data) {
Registration Registration(Data);
Registration.GetResult();
};
map["Auth"] = (DataCls Data) {
Login Login(Data);
Login.GetResult();
};
...
map[string](Data);
This can be simplified with this templated function:
template<class T>
void Handler(DataCls Data) {
T instance(Data);
instance.GetResult();
};
map["Reg"] = Handler<Registration>;
map["Auth"] = Handler<Login>;
...
map[string](Data);
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
One way is to have a (unordered?) map of functions:
std::unordered_map<std::string, std::function<void(DataCls)>> map;
map["Reg"] = (DataCls Data) {
Registration Registration(Data);
Registration.GetResult();
};
map["Auth"] = (DataCls Data) {
Login Login(Data);
Login.GetResult();
};
...
map[string](Data);
This can be simplified with this templated function:
template<class T>
void Handler(DataCls Data) {
T instance(Data);
instance.GetResult();
};
map["Reg"] = Handler<Registration>;
map["Auth"] = Handler<Login>;
...
map[string](Data);
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
edited Nov 22 '18 at 10:01
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
answered Nov 22 '18 at 9:55
freakishfreakish
39.4k593134
39.4k593134
thanks, and how to initialize map for map["Reg"] = Handler<Registration>?
– user1786639
Nov 22 '18 at 10:24
@user1786639 I'm not sure what you mean? The code I've posted should do what you are looking for, no additional initialization is needed.
– freakish
Nov 22 '18 at 10:38
what is DataCls?
– user1786639
Nov 22 '18 at 10:44
@user1786639 whatever yourDataobject is.
– freakish
Nov 22 '18 at 11:06
Thanks! It's work!
– user1786639
Nov 22 '18 at 15:04
add a comment |
thanks, and how to initialize map for map["Reg"] = Handler<Registration>?
– user1786639
Nov 22 '18 at 10:24
@user1786639 I'm not sure what you mean? The code I've posted should do what you are looking for, no additional initialization is needed.
– freakish
Nov 22 '18 at 10:38
what is DataCls?
– user1786639
Nov 22 '18 at 10:44
@user1786639 whatever yourDataobject is.
– freakish
Nov 22 '18 at 11:06
Thanks! It's work!
– user1786639
Nov 22 '18 at 15:04
thanks, and how to initialize map for map["Reg"] = Handler<Registration>?
– user1786639
Nov 22 '18 at 10:24
thanks, and how to initialize map for map["Reg"] = Handler<Registration>?
– user1786639
Nov 22 '18 at 10:24
@user1786639 I'm not sure what you mean? The code I've posted should do what you are looking for, no additional initialization is needed.
– freakish
Nov 22 '18 at 10:38
@user1786639 I'm not sure what you mean? The code I've posted should do what you are looking for, no additional initialization is needed.
– freakish
Nov 22 '18 at 10:38
what is DataCls?
– user1786639
Nov 22 '18 at 10:44
what is DataCls?
– user1786639
Nov 22 '18 at 10:44
@user1786639 whatever your
Data object is.– freakish
Nov 22 '18 at 11:06
@user1786639 whatever your
Data object is.– freakish
Nov 22 '18 at 11:06
Thanks! It's work!
– user1786639
Nov 22 '18 at 15:04
Thanks! It's work!
– user1786639
Nov 22 '18 at 15:04
add a comment |
1
I would recommend the following inheritance hierarchy:
#include <iostream>
#include <string>
#include <map>
class IOperation
{
public:
virtual ~IOperation(){}
virtual int GetResult() = 0;
};
class Registration : public IOperation
{
public:
int GetResult() override
{
return 1;
}
};
class Login : public IOperation
{
public:
int GetResult() override
{
return 2;
}
};
int main()
{
std::map<std::string, IOperation *> classList;
classList["Reg"] = new Registration();
classList["Auth"] = new Login();
std::string cmd = "Auth";
std::cout << classList[cmd]->GetResult();
}
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
add a comment |
1
I would recommend the following inheritance hierarchy:
#include <iostream>
#include <string>
#include <map>
class IOperation
{
public:
virtual ~IOperation(){}
virtual int GetResult() = 0;
};
class Registration : public IOperation
{
public:
int GetResult() override
{
return 1;
}
};
class Login : public IOperation
{
public:
int GetResult() override
{
return 2;
}
};
int main()
{
std::map<std::string, IOperation *> classList;
classList["Reg"] = new Registration();
classList["Auth"] = new Login();
std::string cmd = "Auth";
std::cout << classList[cmd]->GetResult();
}
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
add a comment |
1
1
1
I would recommend the following inheritance hierarchy:
#include <iostream>
#include <string>
#include <map>
class IOperation
{
public:
virtual ~IOperation(){}
virtual int GetResult() = 0;
};
class Registration : public IOperation
{
public:
int GetResult() override
{
return 1;
}
};
class Login : public IOperation
{
public:
int GetResult() override
{
return 2;
}
};
int main()
{
std::map<std::string, IOperation *> classList;
classList["Reg"] = new Registration();
classList["Auth"] = new Login();
std::string cmd = "Auth";
std::cout << classList[cmd]->GetResult();
}
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
I would recommend the following inheritance hierarchy:
#include <iostream>
#include <string>
#include <map>
class IOperation
{
public:
virtual ~IOperation(){}
virtual int GetResult() = 0;
};
class Registration : public IOperation
{
public:
int GetResult() override
{
return 1;
}
};
class Login : public IOperation
{
public:
int GetResult() override
{
return 2;
}
};
int main()
{
std::map<std::string, IOperation *> classList;
classList["Reg"] = new Registration();
classList["Auth"] = new Login();
std::string cmd = "Auth";
std::cout << classList[cmd]->GetResult();
}
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
answered Nov 22 '18 at 10:00
snake_stylesnake_style
1,170410
1,170410
add a comment |
add a comment |
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