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  1. calculator:write('operation supported:),nl,
  2. write('addition'),nl,write('2.subtraction'),nl,nl,write( ' what do u want to do '),nl,read( choice),nl,write(' n1'),nl,read(n1),nl,write(' number 2'),nl,read(n2),c( choice, n1,n2).
Success #stdin #stdout #stderr 0.04s 6928KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
ERROR: /home/vB4I3T/prog:1:1: Syntax error: End of file in quoted atom
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/15erQk
language:
Prolog (swi 7.6.4)
created:
16 days ago
visibility:
public

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