C Program to Display its own Source Code as its Output

#include < stdio.h>
 
int main()
{
    FILE *fp;
    char ch;
 
    fp = fopen(__FILE__,"r");
    do
    {
        ch = getc(fp);
        putchar(ch);
     }
     while (ch != EOF);
     fclose(fp);
     return 0;
}

Output

  
 /* 
  *    display its own  source  code  as  its output
  */ 
#include  
 
int main (  ) 
 { 
    FILE  * fp;
    char ch;
 
    fp = fopen ( __FILE__,"r"  ) ;
     do 
     { 
        ch = getc ( fp ) ;
        putchar ( ch ) ;
      } 
      while   ( ch  ! = EOF ) ;
     fclose ( fp ) ;
      return   0 ;
 } 

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