Convert Int to String and back to Int

BlitzMax Forums/BlitzMax Beginners Area/Convert Int to String and back to Int

Grey Alien

(Posted 2007) [#1]

Some of you beginners may find this code snippet useful. It explains how to convert Integers to Strings and back to Integers:

Strict

Local a=123
Print a

'Convert into a string - doesn't need any special commands
Local b$=a
Print b

'grab a single char (the second one)
Local c$ = Mid(b,2,1)
Print c

'Now convert it to an Integer (needs the Int command)
Local d = Int(c)
Print d

Yan	(Posted 2007) [#2]

Real men slice.

'grab a single char (the second one)
Local c$ = b[1..2]
Print c

Brucey

(Posted 2007) [#3]

And for single digit conversions, you can't beat :

Local d = b[1] - 48
Print d

for speed ;-)

Grey Alien

(Posted 2007) [#4]

great tips. Keep 'em coming.

impixi

(Posted 2007) [#5]

Hexadecimal conversions:

val1% = 255
Print "Integer: " + val1%

s$ = Hex(val1%)
Print "Hexadecimal string: " + s$

val2% = Int("$" + s$)
Print "Integer again: " + val2%

This caught me out recently. I was not aware you could convert a '$'-prefaced hex string back into a decimal value using an Int cast. I spent hours writing a hextodec function! It's the little things like this that can save a lot of time if you know about them...

Grey Alien

(Posted 2007) [#6]

for sure, I'll have to bear that in mine!