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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class X1
  5. {
  6.     X1(int arg_value1) : value1(arg_value1) {}
  7.     int value1;
  8. };
  9.  
  10. class X2 : public X1
  11. {
  12.     int value2;
  13. };
  14.  
  15. int main()
  16. {
  17. 	X2 exampleClass;
  18. 	return 0;
  19. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In constructor ‘X2::X2()’:
prog.cpp:11: error: no matching function for call to ‘X1::X1()’
prog.cpp:6: note: candidates are: X1::X1(int)
prog.cpp:5: note:                 X1::X1(const X1&)
prog.cpp: In function ‘int main()’:
prog.cpp:17: note: synthesized method ‘X2::X2()’ first required here
stdout
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Standard output is empty
https://ideone.com/npiwC
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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