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  1. %{ 
  2. int line_no = 0; 
  3. int char_no = 0; 
  4. %} 
  5. %% 
  6. \n ++line_no; 
  7. . ++char_no; 
  8. end return 0; 
  9. %% 
  10. int yywrap()
  11. {} 
  12. int main()
  13. { 
  14.  
  15. yylex(); 
  16. printf("number of lines = %d, number of chars = %d\n", line_no, char_no ); 
  17.  
  18. return 0; 
  19. }
  20.  
Success #stdin #stdout #stderr 0.03s 6876KB
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stdin
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Hello World
stdout
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Standard output is empty
stderr
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ERROR: /home/6x63Ym/prog:2:4: Syntax error: Operator expected
ERROR: /home/6x63Ym/prog:19:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? ERROR: Unknown option (h for help)
   Exception: (3) program ? EOF: exit
https://ideone.com/VYCHOg
language:
Prolog (swi 7.6.4)
created:
46 days ago
visibility:
public

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