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Convert floating to integer in ksh


 
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# 1  
Old 04-22-2020
Convert floating to integer in ksh

I am having a floating variable which may or may not be float, but the output must be in interger only.

Suppose the variable "a" has float value, then it should be convert to nearest interger value. For example : 23.4 should be convert to 23 and 27.86 should be convert to 28.

So i tried th below code and and the error.
I'm using ksh. Could you please help me on this?

CODE

Code:
a=3333.5678
b=int($a)
echo "a is $a"
echo "b is $b"

ERROR
Code:
Syntax error at line 2 : `(' is not expected.


Last edited by looty; 04-22-2020 at 12:18 AM..
# 2  
Old 04-22-2020
Maybe try something basic like this in ksh?

Code:
a=3333.5678
b=$((rint(a)))
echo "a is $a"
echo "b is $b"

Code:
$ ksh test_rint.ksh 
a is 3333.5678
b is 3334

# 3  
Old 04-22-2020
... that works in ksh93 and newer.

ksh88 needs
Code:
b=$(printf "%.f" $a)

# 4  
Old 04-22-2020
Hi MadeInGermany...
The problem is it rounds both down and up; and int() function rounds down only...
Code:
Last login: Wed Apr 22 17:51:50 on ttys000
AMIGA:amiga~> 
AMIGA:amiga~> dash
AMIGA:\u\w> 
AMIGA:\u\w> printf "%.f\n" 123.456  
123
AMIGA:\u\w> printf "%.f\n" 123.654
124
AMIGA:\u\w> 
AMIGA:\u\w> exit
AMIGA:amiga~> python3.8
Python 3.8.0rc1 (v3.8.0rc1:34214de6ab, Oct  1 2019, 12:56:49) 
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> int(123.456)
123
>>> int(123.654)
123
>>> exit()
AMIGA:amiga~> _

EDIT:
Apologies; ignore, I misread the OP's requirements...

Last edited by wisecracker; 04-22-2020 at 02:01 PM.. Reason: see EDIT:

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