Wandbox
SettingsLog
SettingsLog
Language
GitHubLogin
Ran/Viewed Log

Author

anonymous

about 6 years ago

Language

C++

Compiler

gcc 7.2.0

Options
Warnings
Don't Use Boost
C++11
no pedantic

Author

anonymous

about 6 years ago

›
99
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
#include <iostream>
#include <algorithm>
#include <vector>
#include <memory>
#include <iostream>
#include <functional>
#include <type_traits>


int main()
{
int const x = 10;
auto foo = [x] () mutable {
std::cout << std::is_const<decltype(x)>::value << std::endl;
x = 11;
};
foo();
// remove_reference_t<decltype(x)> x = x;
}

$ g++ prog.cc -Wall -Wextra -std=c++11 
prog.cc: In lambda function:
prog.cc:15:13: error: assignment of read-only variable 'x'
         x = 11;
             ^~
Exit Code:
1