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  1. #include<iostream>
  2.  using namespace std;
  3.  class abc{
  4.     int a;
  5.    public: abc() { } //do nothing constructor
  6.            abc(int x=6){ a=x;} //constructor with default argument  
  7.   };
  8.  main()
  9.   {
  10.       abc a;
  11.   }
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:8:7: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type]
prog.cpp: In function ‘int main()’:
prog.cpp:10:11: error: call of overloaded ‘abc()’ is ambiguous
prog.cpp:10:11: note: candidates are:
prog.cpp:6:12: note: abc::abc(int)
prog.cpp:5:12: note: abc::abc()
stdout
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Standard output is empty
https://ideone.com/OWZWWj
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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