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  1.  
  2.  
  3. class U { 
  4. public: 
  5.   unsigned long id;
  6.   unsigned long generation;
  7.   static unsigned long total_copies;
  8.   U() : id(0), generation(0) { }
  9.   U(unsigned long n) : id(n), generation(0) { }
  10.   U(const U& z) : id(z.id), generation(z.generation + 1) { 
  11.     ++total_copies;
  12.   } 
  13. };
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
/usr/bin/../lib/gcc/i586-linux-gnu/4.9/../../../i386-linux-gnu/crt1.o: In function `_start':
/build/glibc-5CYv_T/glibc-2.19/csu/../sysdeps/i386/start.S:111: undefined reference to `main'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
stdout
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Standard output is empty
https://ideone.com/E6ZSwV
language:
C++14 (clang 8.0)
created:
9 years ago
visibility:
public

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