Is any self reproducing code in C ?

**Mike Wahler** · Nov 14 '05, 12:00 PM

Re: Is any self reproducing code in C ?

"Sweety" <sweety_elegant @yahoo.co.in> wrote in message
news:113be981.0 408230824.7194e e0d@posting.goo gle.com...[color=blue]
> hello experts ,
> Is there any .exe file which creates the output of the
> source code in .c file itself .
> Condition is that instead of there is no .c file in same path the .exe
> file itself prints the output of source .[/color]

Google for "quine".

-Mike

**Gregory Pietsch** · Nov 14 '05, 12:02 PM

Re: Is any self reproducing code in C ?

sweety_elegant@ yahoo.co.in (Sweety) wrote in message news:<113be981. 0408230824.7194 ee0d@posting.go ogle.com>...[color=blue]
> hello experts ,
> Is there any .exe file which creates the output of the
> source code in .c file itself .
> Condition is that instead of there is no .c file in same path the .exe
> file itself prints the output of source .
>
> Waiting for the best reply ,
> bye,[/color]

Yes, there are many C quines. This is a strictly conforming one:

char*a??(??)=?? <
"??=include ",
"??=include ",
"??=define o stdout",
"??=define b break;case",
"??=define s(p)fputs(p,o); ",
"??=define c(p)fputc(p,o); ",
"void t(p,f)char*p;?? ??/")b'??(':s( ??/"???/??/?(??/")b'??)'",
":s(??/"???/??/?)??/")b'??/??/??/??/':f&&s(??/"???/??/?/??/")",
"s(??/"???/??/?/??/")b'??/??/n':if(f)s(??/"???/??/?/n??/")",
"else case'??/"':if(f)s(? ?/"???/??/?/??/??/??/"??/")",
"else default:c(*p)?? >??>??>main()?? ;??/",0);for(p= a",
";*p;p++)t(*p,0 );exit(!ferror( o)&&",
"!fclose(o)?EXI T_SUCCESS",
":EXIT_FAILURE) ;",
"/*NOTREACHED*/",
"??>",
0??>;
??=include
??=include
??=define o stdout
??=define b break;case
??=define s(p)fputs(p,o);
??=define c(p)fputc(p,o);
void t(p,f)char*p;?? ':s("???/?>")b'??(':s("? ??/?(")b'??)'
:s("???/?)")b'??/??/':f&&s("???/?/")
s("???/?/")b'??/n':if(f)s("???/?/n")
else case'"':if(f)s( "???/?/??/"")
else default:c(*p)?? >??>??>main()?? ;",0);for(p= a
;*p;p++)t(*p,0) ;exit(!ferror(o )&&
!fclose(o)?EXIT _SUCCESS
:EXIT_FAILURE);
/*NOTREACHED*/
??>

Gregory Pietsch

**Kevin D. Quitt** · Nov 14 '05, 12:02 PM

Re: Is any self reproducing code in C ?

Give this to your teacher:

(*a);int main(void){char i,*s[]={"%c%s%c%c%c ",
"(*a);int main(void){char i,*s[]={",
"%c%c%c%s%c%s%c %s%c%s%c/*%c%s",
";printf(s[1]);for(i=0;i<=12 ;i++)printf(s[0],34,s[i],34,44,10);",
"printf(s[2],34,34,125,s[3],10,s[4],10,s[5],10,s[6],10,41,s[7]);",
"for(i=0;i<=12; i++)printf(s[0],39,s[i],39,44,10);",
"printf(s[12],39,39,41,s[8],10,s[9],10,s[10],10,s[11],10,47,125);",
"const q=#34;w=#39;n=# 13#10;s:array[0..13] of string=(",
";var i:integer;begin write(s[1]);for i:=0to 12do write(q,s[i],q,#44,n);",
"write(#34#34#1 25,s[3],n,s[4],n,s[5],n,s[6],n,#47#42#41,s[7]);",
"for i:=0to 12do write(w,s[i],w,#44,n); ",
"write(#39#39#4 1,s[8],n,s[9],n,s[10],n,s[11],n,#123#42#47#1 25);end.",
"%c%c%c%s%c%s%c %s%c%s%c{*%c%c" ,
""};printf( s[1]);for(i=0;i<=12 ;i++)printf(s[0],34,s[i],34,44,10);
printf(s[2],34,34,125,s[3],10,s[4],10,s[5],10,s[6],10,41,s[7]);
for(i=0;i<=12;i ++)printf(s[0],39,s[i],39,44,10);
printf(s[12],39,39,41,s[8],10,s[9],10,s[10],10,s[11],10,47,125);
/*)const q=#34;w=#39;n=# 13#10;s:array[0..13] of string=('%c%s%c %c%c',
'(*a);int main(void){char i,*s[]={',
'%c%c%c%s%c%s%c %s%c%s%c/*%c%s',
';printf(s[1]);for(i=0;i<=12 ;i++)printf(s[0],34,s[i],34,44,10);',
'printf(s[2],34,34,125,s[3],10,s[4],10,s[5],10,s[6],10,41,s[7]);',
'for(i=0;i<=12; i++)printf(s[0],39,s[i],39,44,10);',
'printf(s[12],39,39,41,s[8],10,s[9],10,s[10],10,s[11],10,47,125);',
'const q=#34;w=#39;n=# 13#10;s:array[0..13] of string=(',
';var i:integer;begin write(s[1]);for i:=0to 12do write(q,s[i],q,#44,n);',
'write(#34#34#1 25,s[3],n,s[4],n,s[5],n,s[6],n,#47#42#41,s[7]);',
'for i:=0to 12do write(w,s[i],w,#44,n); ',
'write(#39#39#4 1,s[8],n,s[9],n,s[10],n,s[11],n,#123#42#47#1 25);end.',
'%c%c%c%s%c%s%c %s%c%s%c{*%c%c' ,
'');var i:integer;begin write(s[1]);for i:=0to 12do write(q,s[i],q,#44,n);
write(#34#34#12 5,s[3],n,s[4],n,s[5],n,s[6],n,#47#42#41,s[7]);
for i:=0to 12do write(w,s[i],w,#44,n);
write(#39#39#41 ,s[8],n,s[9],n,s[10],n,s[11],n,#123#42#47#1 25);end.
{*/}

--
#include <standard.discl aimer>
_
Kevin D Quitt USA 91387-4454 96.37% of all statistics are made up
Per the FCA, this address may not be added to any commercial mail list

**Kevin D. Quitt** · Nov 14 '05, 12:04 PM

Re: Is any self reproducing code in C ?

On 24 Aug 2004 15:37:32 -0700, GKP1@flash.net (Gregory Pietsch) wrote:[color=blue]
>Yes, there are many C quines. This is a strictly conforming one:[/color]

Are you sure that wasn't corrupted at some point? And I don't mean
because of the trigraphs.

--
#include <standard.discl aimer>
_
Kevin D Quitt USA 91387-4454 96.37% of all statistics are made up
Per the FCA, this address may not be added to any commercial mail list

**Kevin D. Quitt** · Nov 14 '05, 12:04 PM

Re: Is any self reproducing code in C ?

Hah! It was. From <http://www0.us.ioccc.o rg/1990/scjones.c>

char*a??(??)=?? <
"??=include<std io.h>",
"??=include<std lib.h>",
"??=define o stdout",
"??=define b break;case",
"??=define s(p)fputs(p,o); ",
"??=define c(p)fputc(p,o); ",
"void t(p,f)char*p;?? <f&&c('??/"')",
"for(;;p++)??<s witch(*p)??<cas e 0:f&&",
"s(??/"??/??/??/",??/")c('??/??/n')return;case" ,
"'??=':s(??/"???/??/?=??/")b'??<':s( ??/"???/??/?<??/")",
"b'??>':s(? ?/"???/??/?>??/")b'??(':s( ??/"???/??/?(??/")b'??)'",
":s(??/"???/??/?)??/")b'??/??/??/??/':f&&s(??/"???/??/?/??/")",
"s(??/"???/??/?/??/")b'??/??/n':if(f)s(??/"???/??/?/n??/")",
"else case'??/"':if(f)s(? ?/"???/??/?/??/??/??/"??/")",
"else default:c(*p)?? >??>??>main()?? <char**p",
";t(??/"char*a??(??)=? ?<??/",0);for(p=a;*p ",
";p++)t(*p,1);t (??/"0??>;??/",0);for(p= a",
";*p;p++)t(*p,0 );exit(!ferror( o)&&",
"!fclose(o)?EXI T_SUCCESS",
":EXIT_FAILURE) ;",
"/*NOTREACHED*/",
"??>",
0??>;
??=include<stdi o.h>
??=include<stdl ib.h>
??=define o stdout
??=define b break;case
??=define s(p)fputs(p,o);
??=define c(p)fputc(p,o);
void t(p,f)char*p;?? <f&&c('"')
for(;;p++)??<sw itch(*p)??<case 0:f&&
s("??/",")c('??/n')return;case
'??=':s("???/?=")b'??<':s("? ??/?<")
b'??>':s("???/?>")b'??(':s("? ??/?(")b'??)'
:s("???/?)")b'??/??/':f&&s("???/?/")
s("???/?/")b'??/n':if(f)s("???/?/n")
else case'"':if(f)s( "???/?/??/"")
else default:c(*p)?? >??>??>main()?? <char**p
;t("char*a??(?? )=??<",0);for(p =a;*p
;p++)t(*p,1);t( "0??>;",0);for( p=a
;*p;p++)t(*p,0) ;exit(!ferror(o )&&
!fclose(o)?EXIT _SUCCESS
:EXIT_FAILURE);
/*NOTREACHED*/
??>

--
#include <standard.discl aimer>
_
Kevin D Quitt USA 91387-4454 96.37% of all statistics are made up
Per the FCA, this address may not be added to any commercial mail list

**bogonic** · Nov 14 '05, 12:05 PM

Re: Is any self reproducing code in C ?

sweety_elegant@ yahoo.co.in (Sweety) wrote in message news:<113be981. 0408230824.7194 ee0d@posting.go ogle.com>...[color=blue]
> hello experts ,
> Is there any .exe file which creates the output of the
> source code in .c file itself .
> Condition is that instead of there is no .c file in same path the .exe
> file itself prints the output of source .[/color]

char*b=
" "
" "
" ## "
" ## "
" # "
" "
" "
" "
,*dna[]={
"};main(){i nt i,j,k,n;char*p; puts(xchar*b=x) ;for(i=0;i<64;i ++,i&7||puts(xz xx))",
"{i&7||putchar( 34);for(n=-b[i],k=-8,j=0;j<9;j++,j y3||(k+=8))n+=b[(i+k&56)",
"|(i+jy3-1&7)];putchar(x #x[n==262&&b[i]==35||n==265]);}puts(x,*dna[]={x);for",
"(i=0;i<5;i++)p rintf(xzxyszx,z nx,dna[i]);for(i=0;i<5;i ++,putchar(10)) for(",
"p=dna[i];*p;++p)putchar (*p==120?34:*p= =121?37:*p==122 ?92:*p);}",
};main(){int i,j,k,n;char*p; puts("char*b=") ;for(i=0;i<64;i ++,i&7||puts("\ ""))
{i&7||putchar(3 4);for(n=-b[i],k=-8,j=0;j<9;j++,j %3||(k+=8))n+=b[(i+k&56)
|(i+j%3-1&7)];putchar(" #"[n==262&&b[i]==35||n==265]);}puts(",*dna[]={");for
(i=0;i<5;i++)pr intf("\"%s\",\n ",dna[i]);for(i=0;i<5;i ++,putchar(10)) for(
p=dna[i];*p;++p)putchar (*p==120?34:*p= =121?37:*p==122 ?92:*p);}

/* It's life Jim, but not as we know it! */

Is any self reproducing code in C ?

Is any self reproducing code in C ?

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