fork download
copy 
  1. %{
  2.     #include<stdio.h>
  3.     FILE*out;
  4. %}
  5. %%
  6. "/*"([^*]|\*+[^*/])*\*+"/"     {/*ignore*/}
  7. "//".*  {//ignore}
  8. .|\n  {fprintf(out,"%s",yytext);}
  9. %%
  10. int yywrap(){
  11.     return 1;
  12. }
  13. int main(){
  14.     out=fopen("out.c","w");
  15.     if(out==NULL){
  16.         printf("error");
  17.         return 0;
  18.     }
  19.     printf("enter c code:\n");
  20.     yylex();
  21.     fclose(out);
  22.     return 0;
  23. }
Success #stdin #stdout #stderr 0.02s 6868KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/Hq5UBQ/prog:23:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/HIXz0E
language:
Prolog (swi 7.6.4)
created:
11 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!