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  1. class A{ int i; };
  2.  
  3. int main() {
  4. 	const A a;
  5. }
Compilation error #stdin compilation error #stdout 0s 3292KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:4:10: error: uninitialized const ‘a’ [-fpermissive]
  const A a;
          ^
prog.cpp:1:7: note: ‘const class A’ has no user-provided default constructor
 class A{ int i; };
       ^
prog.cpp:1:14: note: and the implicitly-defined constructor does not initialize ‘int A::i’
 class A{ int i; };
              ^
prog.cpp:4:10: warning: unused variable ‘a’ [-Wunused-variable]
  const A a;
          ^
stdout
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Standard output is empty
https://ideone.com/B6rfce
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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