how to extract character on the right? - Forex-TSD

natsirte · #1 (**permalink**) 09-13-2007, 11:51 PM

Hi,

I’ve got some variables

Int var1= 12.598

Int var2 = 96.325

Int var3=12544.3658882

Int var4=9865.010144

How can I extract the last 2 characters on the right (98 , 25 or 82 etc.. )

With the function « StringSubstr »?

Because StringSubstr (var1,0,2) =12

Thanks for all your help!

omelette · #2 (**permalink**) 09-14-2007, 01:03 AM

Note, all those integers need to be of type double.

You need to convert the variables to strings, and as decimal places can vary, do a search for any 'padded' zeros added by DoubleToStr.

Code:

double var = 12.3456;
string strvar = DoubleToStr(var,8);
int ndx = StringFind(strvar,"0",0);
if (ndx == -1)
 ndx = StringLen(strvar);
Print(StringSubStr(strvar,ndx - 2, 2));

At least that's how I'd do it. If anyone knows another way, let me know!

natsirte · #3 (**permalink**) 09-14-2007, 10:19 AM

Thanks you for your help

But I've got a message :

'StringSubStr' function is not defined

How can I do ?

Best regards

jlpi · #4 (**permalink**) 09-14-2007, 10:42 AM

Quote:

Originally Posted by natsirte

Thanks you for your help

But I've got a message :

'StringSubStr' function is not defined

How can I do ?

Best regards

it just a small typing mistake StringSubstr instead of StringSubStr

and just a small thing to take care: in omelette's code the maximum size that is assumed for your number is 8 digits but it may be more.

natsirte · #5 (**permalink**) 09-14-2007, 12:52 PM

Hi

Thank you very much for your help!!

omelette · #6 (**permalink**) 09-14-2007, 01:14 PM

Quote:

Originally Posted by jlpi

it just a small typing mistake StringSubstr instead of StringSubStr

and just a small thing to take care: in omelette's code the maximum size that is assumed for your number is 8 digits but it may be more.

Hi. Don't think it can be - MT limits the number of decimal places to 8 as far I I'm aware. Switch to a different platform, then yes.

Natsirte, while I'm here I should point out (in case you didn't realize it) that the code I posted expects the integer part of 'var' to be non-zero. If this is a possibility, an additional check would be required.