A lot of warnings when compiling date library
The date library is very useful but you can see a lot of warnings after compiling a simple example that uses date library.
for example:
#include "date.h"
int main() {
using namespace date;
std::cout << weekday{July/4/2001} << 'n';
}
compiled with:
g++ -c -Waggregate-return main.cpp
warning: function call has aggregate value [-Waggregate-return]...
c++ date
edited Nov 20 '18 at 10:56
M.K
359219
asked Nov 20 '18 at 8:56
sadig
265
|
show 2 more comments
The date library is very useful but you can see a lot of warnings after compiling a simple example that uses date library.
for example:
#include "date.h"
int main() {
using namespace date;
std::cout << weekday{July/4/2001} << 'n';
}
compiled with:
g++ -c -Waggregate-return main.cpp
warning: function call has aggregate value [-Waggregate-return]...
c++ date
edited Nov 20 '18 at 10:56
M.K
359219
asked Nov 20 '18 at 8:56
sadig
265
1
Can you show us the warnings?
– mch
Nov 20 '18 at 9:00
What is your question?
– VTT
Nov 20 '18 at 9:00
yes, compile without errors but with a lot of warnings.
– sadig
Nov 20 '18 at 9:01
1
stackoverflow.com/questions/14016993/…
– The Unknown
Nov 20 '18 at 9:09
3
and what is the reason you compile with-Waggregate-return? it is a pretty obscure (and useless) flag that triggers warnings for a valid C++ code.
– bolov
Nov 20 '18 at 10:10
|
show 2 more comments
The date library is very useful but you can see a lot of warnings after compiling a simple example that uses date library.
for example:
#include "date.h"
int main() {
using namespace date;
std::cout << weekday{July/4/2001} << 'n';
}
compiled with:
g++ -c -Waggregate-return main.cpp
warning: function call has aggregate value [-Waggregate-return]...
c++ date
edited Nov 20 '18 at 10:56
M.K
359219
asked Nov 20 '18 at 8:56
sadig
265
The date library is very useful but you can see a lot of warnings after compiling a simple example that uses date library.
for example:
#include "date.h"
int main() {
using namespace date;
std::cout << weekday{July/4/2001} << 'n';
}
compiled with:
g++ -c -Waggregate-return main.cpp
warning: function call has aggregate value [-Waggregate-return]...
c++ date
c++ date
edited Nov 20 '18 at 10:56
M.K
359219
asked Nov 20 '18 at 8:56
sadig
265
edited Nov 20 '18 at 10:56
M.K
359219
asked Nov 20 '18 at 8:56
sadig
265
edited Nov 20 '18 at 10:56
M.K
359219
edited Nov 20 '18 at 10:56
M.K
359219
edited Nov 20 '18 at 10:56
M.K
359219
359219
asked Nov 20 '18 at 8:56
sadig
265
asked Nov 20 '18 at 8:56
sadig
265
asked Nov 20 '18 at 8:56
sadig
265
265
1
Can you show us the warnings?
– mch
Nov 20 '18 at 9:00
What is your question?
– VTT
Nov 20 '18 at 9:00
yes, compile without errors but with a lot of warnings.
– sadig
Nov 20 '18 at 9:01
1
stackoverflow.com/questions/14016993/…
– The Unknown
Nov 20 '18 at 9:09
3
and what is the reason you compile with-Waggregate-return? it is a pretty obscure (and useless) flag that triggers warnings for a valid C++ code.
– bolov
Nov 20 '18 at 10:10
|
show 2 more comments
1
Can you show us the warnings?
– mch
Nov 20 '18 at 9:00
What is your question?
– VTT
Nov 20 '18 at 9:00
yes, compile without errors but with a lot of warnings.
– sadig
Nov 20 '18 at 9:01
1
stackoverflow.com/questions/14016993/…
– The Unknown
Nov 20 '18 at 9:09
3
and what is the reason you compile with-Waggregate-return? it is a pretty obscure (and useless) flag that triggers warnings for a valid C++ code.
– bolov
Nov 20 '18 at 10:10
1
1
Can you show us the warnings?
– mch
Nov 20 '18 at 9:00
Can you show us the warnings?
– mch
Nov 20 '18 at 9:00
What is your question?
– VTT
Nov 20 '18 at 9:00
What is your question?
– VTT
Nov 20 '18 at 9:00
yes, compile without errors but with a lot of warnings.
– sadig
Nov 20 '18 at 9:01
yes, compile without errors but with a lot of warnings.
– sadig
Nov 20 '18 at 9:01
1
1
stackoverflow.com/questions/14016993/…
– The Unknown
Nov 20 '18 at 9:09
stackoverflow.com/questions/14016993/…
– The Unknown
Nov 20 '18 at 9:09
3
3
and what is the reason you compile with
-Waggregate-return? it is a pretty obscure (and useless) flag that triggers warnings for a valid C++ code.– bolov
Nov 20 '18 at 10:10
and what is the reason you compile with
-Waggregate-return? it is a pretty obscure (and useless) flag that triggers warnings for a valid C++ code.– bolov
Nov 20 '18 at 10:10
|
show 2 more comments
2 Answers
2
active
oldest
votes
Depending on the version of your compiler, C++11 (or later) mode might not be active, so try adding -std=gnu++0x at least. Also you code needs #include <iostream> added.
answered Nov 20 '18 at 10:04
Bo R
616110
add a comment |
To fix these warnings you should remove the flag -Waggregate-return from your compile string. This flag causes warnings for valid code.
Note that you also need #include <iostream>, and for older versions of g++ , -std=c++14 or a similar flag.
answered Nov 20 '18 at 10:19
M.M
104k11113234
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
Depending on the version of your compiler, C++11 (or later) mode might not be active, so try adding -std=gnu++0x at least. Also you code needs #include <iostream> added.
answered Nov 20 '18 at 10:04
Bo R
616110
add a comment |
Depending on the version of your compiler, C++11 (or later) mode might not be active, so try adding -std=gnu++0x at least. Also you code needs #include <iostream> added.
answered Nov 20 '18 at 10:04
Bo R
616110
add a comment |
Depending on the version of your compiler, C++11 (or later) mode might not be active, so try adding -std=gnu++0x at least. Also you code needs #include <iostream> added.
answered Nov 20 '18 at 10:04
Bo R
616110
Depending on the version of your compiler, C++11 (or later) mode might not be active, so try adding -std=gnu++0x at least. Also you code needs #include <iostream> added.
answered Nov 20 '18 at 10:04
Bo R
616110
answered Nov 20 '18 at 10:04
Bo R
616110
answered Nov 20 '18 at 10:04
Bo R
616110
answered Nov 20 '18 at 10:04
Bo R
616110
616110
add a comment |
add a comment |
To fix these warnings you should remove the flag -Waggregate-return from your compile string. This flag causes warnings for valid code.
Note that you also need #include <iostream>, and for older versions of g++ , -std=c++14 or a similar flag.
answered Nov 20 '18 at 10:19
M.M
104k11113234
add a comment |
To fix these warnings you should remove the flag -Waggregate-return from your compile string. This flag causes warnings for valid code.
Note that you also need #include <iostream>, and for older versions of g++ , -std=c++14 or a similar flag.
answered Nov 20 '18 at 10:19
M.M
104k11113234
add a comment |
To fix these warnings you should remove the flag -Waggregate-return from your compile string. This flag causes warnings for valid code.
Note that you also need #include <iostream>, and for older versions of g++ , -std=c++14 or a similar flag.
answered Nov 20 '18 at 10:19
M.M
104k11113234
To fix these warnings you should remove the flag -Waggregate-return from your compile string. This flag causes warnings for valid code.
Note that you also need #include <iostream>, and for older versions of g++ , -std=c++14 or a similar flag.
answered Nov 20 '18 at 10:19
M.M
104k11113234
answered Nov 20 '18 at 10:19
M.M
104k11113234
answered Nov 20 '18 at 10:19
M.M
104k11113234
answered Nov 20 '18 at 10:19
M.M
104k11113234
104k11113234
add a comment |
add a comment |
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1
Can you show us the warnings?
– mch
Nov 20 '18 at 9:00
What is your question?
– VTT
Nov 20 '18 at 9:00
yes, compile without errors but with a lot of warnings.
– sadig
Nov 20 '18 at 9:01
1
stackoverflow.com/questions/14016993/…
– The Unknown
Nov 20 '18 at 9:09
3
and what is the reason you compile with
-Waggregate-return? it is a pretty obscure (and useless) flag that triggers warnings for a valid C++ code.– bolov
Nov 20 '18 at 10:10