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Re: Memory allocation overflow

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jonas.thornvall@gmail.com writes:

> What could possibly overflow in this?

The string.

> To me it seems just weird

The best thing to do would be to learn the language yo are using.  Until
you do everything you write is likely to seem weird.  Most of the names
you use refer to properties of the global object, so the j in one place
is the same j used in another.

> j=1;
> while(j<=base){

This test is never false.

> prime=false;
> i=j;
> i=i+base;
> while (i<100){
>  primeleg=factor_it(i);
>  if(primeleg==true){break;}
>  i=i+base;
> }
> outStr+="Base="+base+" counterval i = "+i+" P primeleg ="+primeleg+"\n";
> j++;
> }

<snip>
> The full code below------------------------
> <script language="Javascript">
>
> function factor_it(i){
> prime=true;
> sqroot=Math.floor(Math.sqrt(i));
> for (j=2;j<sqroot;j++){ k=i/j; prime=!Number.isInteger(k); if (prime)
> {return prime}}
> return prime;
> }

This function is very odd.  Nothing it does has much to do with the
names used -- prime and factor_it.  It does not factor the number i, nor
does it test for i being prime.  But, crucially, it alters j which you
use elsewhere.

That kind of programming is not sustainable.  You really need to learn
how to write self-contained functions that do their job without messing
up the rest of the program.

> function main(){
> base=10;
> outStr="";
>
> //while (base==10) {
>
> j=1;
> while(j<=base){
> prime=false;
> i=j;
> i=i+base;
> while (i<100){
>  primeleg=factor_it(i);
>  if(primeleg==true){break;}
>  i=i+base;
> }
> outStr+="Base="+base+" counterval i = "+i+" P primeleg ="+primeleg+"\n";
> j++;
> }
>
> //base++;
> //}
> document.prime.out.value =outStr;
> }

Left for reference.

-- 
Ben.

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Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 09:58 -0800
  Re: Memory allocation overflow "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-01-16 19:52 +0100
    Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 11:03 -0800
      Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 11:05 -0800
        Re: Memory allocation overflow Luuk <luuk@invalid.lan> - 2016-01-16 20:13 +0100
          Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 11:25 -0800
            Re: Memory allocation overflow Luuk <luuk@invalid.lan> - 2016-01-16 21:25 +0100
              Re: Memory allocation overflow Luuk <luuk@invalid.lan> - 2016-01-16 21:31 +0100
                Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 14:06 -0800
                Re: Memory allocation overflow John Harris <niam@jghnorth.org.uk.invalid> - 2016-01-17 11:08 +0000
                Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-17 04:10 -0800
                Re: Memory allocation overflow Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-01-17 20:15 +0000
                Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-17 13:25 -0800
                Re: Memory allocation overflow Carlos Pedro <carlospedr@gmail.com> - 2016-01-18 08:21 -0800
      Re: Memory allocation overflow "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-01-16 20:29 +0100
  Re: Memory allocation overflow Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-01-16 23:43 +0000
    Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 19:30 -0800
      Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 19:56 -0800
        Re: Memory allocation overflow jonas.thornvall@gmail.com - 2016-01-16 20:01 -0800
  Re: Memory allocation overflow Silvio <silvio@internet.com> - 2016-01-18 16:09 +0100

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