C++ says gcd is not a member of std
up vote
1
down vote
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I am using visual studio 2017 and I have run across a problem. When trying to use std::gcd it gives me an error error C2039: 'gcd': is not a member of 'std'
Here's my code:
#include "pch.h"
#include <iostream>
#include <numeric>
int main() {
std::cout << std::gcd(10, 5);
return 1;
}
c++ visual-studio-2017
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
asked Nov 11 at 18:04
Joyal Mathew
300112
add a comment |
up vote
1
down vote
favorite
I am using visual studio 2017 and I have run across a problem. When trying to use std::gcd it gives me an error error C2039: 'gcd': is not a member of 'std'
Here's my code:
#include "pch.h"
#include <iostream>
#include <numeric>
int main() {
std::cout << std::gcd(10, 5);
return 1;
}
c++ visual-studio-2017
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
asked Nov 11 at 18:04
Joyal Mathew
300112
Did you enable-std=c++11with your compiler flags?
– πάντα ῥεῖ
Nov 11 at 18:06
@πάνταῥεῖ im not sure what that means. But shouldn't i be using c++17?
– Joyal Mathew
Nov 11 at 18:10
Oh, sorry. It should be-std=c++17according to the reference documentation
– πάντα ῥεῖ
Nov 11 at 18:14
4
@πάνταῥεῖ The command-line option in MSVS is/std:c++17, not the same as GCC or Clang.
– Blastfurnace
Nov 11 at 18:16
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I am using visual studio 2017 and I have run across a problem. When trying to use std::gcd it gives me an error error C2039: 'gcd': is not a member of 'std'
Here's my code:
#include "pch.h"
#include <iostream>
#include <numeric>
int main() {
std::cout << std::gcd(10, 5);
return 1;
}
c++ visual-studio-2017
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
asked Nov 11 at 18:04
Joyal Mathew
300112
I am using visual studio 2017 and I have run across a problem. When trying to use std::gcd it gives me an error error C2039: 'gcd': is not a member of 'std'
Here's my code:
#include "pch.h"
#include <iostream>
#include <numeric>
int main() {
std::cout << std::gcd(10, 5);
return 1;
}
c++ visual-studio-2017
c++ visual-studio-2017
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
asked Nov 11 at 18:04
Joyal Mathew
300112
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
asked Nov 11 at 18:04
Joyal Mathew
300112
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
edited Nov 11 at 18:06
πάντα ῥεῖ
71.3k972134
71.3k972134
asked Nov 11 at 18:04
Joyal Mathew
300112
asked Nov 11 at 18:04
Joyal Mathew
300112
asked Nov 11 at 18:04
Joyal Mathew
300112
300112
Did you enable-std=c++11with your compiler flags?
– πάντα ῥεῖ
Nov 11 at 18:06
@πάνταῥεῖ im not sure what that means. But shouldn't i be using c++17?
– Joyal Mathew
Nov 11 at 18:10
Oh, sorry. It should be-std=c++17according to the reference documentation
– πάντα ῥεῖ
Nov 11 at 18:14
4
@πάνταῥεῖ The command-line option in MSVS is/std:c++17, not the same as GCC or Clang.
– Blastfurnace
Nov 11 at 18:16
add a comment |
Did you enable-std=c++11with your compiler flags?
– πάντα ῥεῖ
Nov 11 at 18:06
@πάνταῥεῖ im not sure what that means. But shouldn't i be using c++17?
– Joyal Mathew
Nov 11 at 18:10
Oh, sorry. It should be-std=c++17according to the reference documentation
– πάντα ῥεῖ
Nov 11 at 18:14
4
@πάνταῥεῖ The command-line option in MSVS is/std:c++17, not the same as GCC or Clang.
– Blastfurnace
Nov 11 at 18:16
Did you enable
-std=c++11 with your compiler flags?– πάντα ῥεῖ
Nov 11 at 18:06
Did you enable
-std=c++11 with your compiler flags?– πάντα ῥεῖ
Nov 11 at 18:06
@πάνταῥεῖ im not sure what that means. But shouldn't i be using c++17?
– Joyal Mathew
Nov 11 at 18:10
@πάνταῥεῖ im not sure what that means. But shouldn't i be using c++17?
– Joyal Mathew
Nov 11 at 18:10
Oh, sorry. It should be
-std=c++17 according to the reference documentation– πάντα ῥεῖ
Nov 11 at 18:14
Oh, sorry. It should be
-std=c++17 according to the reference documentation– πάντα ῥεῖ
Nov 11 at 18:14
4
4
@πάνταῥεῖ The command-line option in MSVS is
/std:c++17, not the same as GCC or Clang.– Blastfurnace
Nov 11 at 18:16
@πάνταῥεῖ The command-line option in MSVS is
/std:c++17, not the same as GCC or Clang.– Blastfurnace
Nov 11 at 18:16
add a comment |
2 Answers
2
active
oldest
votes
up vote
6
down vote
accepted
std::gcd was added in C++17. To use it in Visual Studio you need to specify the language standard. You can do that two ways, use the /std:c++17 command-line option or in the Project Properties dialog: C/C++ -> Language -> C++ Language Standard.
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
Thanks! I would assume that VS 2017 would use C++17 by default. Why isn't this the case?
– Joyal Mathew
Nov 12 at 2:44
@JoyalMathew Here's documentation for the/stdoption. It does default to C++14, you would have to ask them why.
– Blastfurnace
Nov 12 at 2:53
1
@JoyalMathew: VS2017 is from May 2017, C++17 was approved in December 2017.
– MSalters
Nov 12 at 8:31
add a comment |
up vote
0
down vote
I just tested and got the same error with VS2017 15.8.9 after having set the language standard to C++17. When I checked my project settings again, the language setting I made had reverted back to the default. After having set it a second time, it worked.
This seems to happen often when I start a new project and change to C++17 directly.
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
6
down vote
accepted
std::gcd was added in C++17. To use it in Visual Studio you need to specify the language standard. You can do that two ways, use the /std:c++17 command-line option or in the Project Properties dialog: C/C++ -> Language -> C++ Language Standard.
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
Thanks! I would assume that VS 2017 would use C++17 by default. Why isn't this the case?
– Joyal Mathew
Nov 12 at 2:44
@JoyalMathew Here's documentation for the/stdoption. It does default to C++14, you would have to ask them why.
– Blastfurnace
Nov 12 at 2:53
1
@JoyalMathew: VS2017 is from May 2017, C++17 was approved in December 2017.
– MSalters
Nov 12 at 8:31
add a comment |
up vote
6
down vote
accepted
std::gcd was added in C++17. To use it in Visual Studio you need to specify the language standard. You can do that two ways, use the /std:c++17 command-line option or in the Project Properties dialog: C/C++ -> Language -> C++ Language Standard.
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
Thanks! I would assume that VS 2017 would use C++17 by default. Why isn't this the case?
– Joyal Mathew
Nov 12 at 2:44
@JoyalMathew Here's documentation for the/stdoption. It does default to C++14, you would have to ask them why.
– Blastfurnace
Nov 12 at 2:53
1
@JoyalMathew: VS2017 is from May 2017, C++17 was approved in December 2017.
– MSalters
Nov 12 at 8:31
add a comment |
up vote
6
down vote
accepted
up vote
6
down vote
accepted
std::gcd was added in C++17. To use it in Visual Studio you need to specify the language standard. You can do that two ways, use the /std:c++17 command-line option or in the Project Properties dialog: C/C++ -> Language -> C++ Language Standard.
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
std::gcd was added in C++17. To use it in Visual Studio you need to specify the language standard. You can do that two ways, use the /std:c++17 command-line option or in the Project Properties dialog: C/C++ -> Language -> C++ Language Standard.
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
answered Nov 11 at 18:12
Blastfurnace
13.6k54058
13.6k54058
Thanks! I would assume that VS 2017 would use C++17 by default. Why isn't this the case?
– Joyal Mathew
Nov 12 at 2:44
@JoyalMathew Here's documentation for the/stdoption. It does default to C++14, you would have to ask them why.
– Blastfurnace
Nov 12 at 2:53
1
@JoyalMathew: VS2017 is from May 2017, C++17 was approved in December 2017.
– MSalters
Nov 12 at 8:31
add a comment |
Thanks! I would assume that VS 2017 would use C++17 by default. Why isn't this the case?
– Joyal Mathew
Nov 12 at 2:44
@JoyalMathew Here's documentation for the/stdoption. It does default to C++14, you would have to ask them why.
– Blastfurnace
Nov 12 at 2:53
1
@JoyalMathew: VS2017 is from May 2017, C++17 was approved in December 2017.
– MSalters
Nov 12 at 8:31
Thanks! I would assume that VS 2017 would use C++17 by default. Why isn't this the case?
– Joyal Mathew
Nov 12 at 2:44
Thanks! I would assume that VS 2017 would use C++17 by default. Why isn't this the case?
– Joyal Mathew
Nov 12 at 2:44
@JoyalMathew Here's documentation for the
/std option. It does default to C++14, you would have to ask them why.– Blastfurnace
Nov 12 at 2:53
@JoyalMathew Here's documentation for the
/std option. It does default to C++14, you would have to ask them why.– Blastfurnace
Nov 12 at 2:53
1
1
@JoyalMathew: VS2017 is from May 2017, C++17 was approved in December 2017.
– MSalters
Nov 12 at 8:31
@JoyalMathew: VS2017 is from May 2017, C++17 was approved in December 2017.
– MSalters
Nov 12 at 8:31
add a comment |
up vote
0
down vote
I just tested and got the same error with VS2017 15.8.9 after having set the language standard to C++17. When I checked my project settings again, the language setting I made had reverted back to the default. After having set it a second time, it worked.
This seems to happen often when I start a new project and change to C++17 directly.
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
add a comment |
up vote
0
down vote
I just tested and got the same error with VS2017 15.8.9 after having set the language standard to C++17. When I checked my project settings again, the language setting I made had reverted back to the default. After having set it a second time, it worked.
This seems to happen often when I start a new project and change to C++17 directly.
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
add a comment |
up vote
0
down vote
up vote
0
down vote
I just tested and got the same error with VS2017 15.8.9 after having set the language standard to C++17. When I checked my project settings again, the language setting I made had reverted back to the default. After having set it a second time, it worked.
This seems to happen often when I start a new project and change to C++17 directly.
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
I just tested and got the same error with VS2017 15.8.9 after having set the language standard to C++17. When I checked my project settings again, the language setting I made had reverted back to the default. After having set it a second time, it worked.
This seems to happen often when I start a new project and change to C++17 directly.
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
answered Nov 11 at 18:28
Ted Lyngmo
1,443314
1,443314
add a comment |
add a comment |
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Did you enable
-std=c++11with your compiler flags?– πάντα ῥεῖ
Nov 11 at 18:06
@πάνταῥεῖ im not sure what that means. But shouldn't i be using c++17?
– Joyal Mathew
Nov 11 at 18:10
Oh, sorry. It should be
-std=c++17according to the reference documentation– πάντα ῥεῖ
Nov 11 at 18:14
4
@πάνταῥεῖ The command-line option in MSVS is
/std:c++17, not the same as GCC or Clang.– Blastfurnace
Nov 11 at 18:16