Prev: how to configure mysql for debug installation
Next: ~~~~~~~~~~~~~~ DIESEL MOTORCYCLE ~~~~~~~~~~~~~~
From: Daniel de Córdoba on 25 Dec 2009 02:16
Hi,
in the hope that this may be useful for somebody, I created this
easy shell calculator. It just creates a C++ program, compiles it,
runs it, and removes it.

http://shell-calc.googlecode.com/

I just needed a powerful calculator (bitwise operators, hexadecimal
input/output, etc.), and found nothing appropriate.

Daniel.
From: Chris F.A. Johnson on 25 Dec 2009 05:01
On 2009-12-25, Daniel de C?rdoba wrote:
> Hi,
> in the hope that this may be useful for somebody, I created this
> easy shell calculator. It just creates a C++ program, compiles it,
> runs it, and removes it.
>
> http://shell-calc.googlecode.com/
>
> I just needed a powerful calculator (bitwise operators, hexadecimal
> input/output, etc.), and found nothing appropriate.

I use:

calc() {
awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'
}

--
Chris F.A. Johnson, author <http://shell.cfajohnson.com/>
===================================================================
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
===== My code in this post, if any, assumes the POSIX locale =====
===== and is released under the GNU General Public Licence =====
From: Kenny McCormack on 25 Dec 2009 09:20
In article <7pjgr3Fl2cU1(a)mid.individual.net>,
Chris F.A. Johnson <cfajohnson(a)gmail.com> wrote:
>On 2009-12-25, Daniel de C?rdoba wrote:
>> Hi,
>> in the hope that this may be useful for somebody, I created this
>> easy shell calculator. It just creates a C++ program, compiles it,
>> runs it, and removes it.
>>
>> http://shell-calc.googlecode.com/
>>
>> I just needed a powerful calculator (bitwise operators, hexadecimal
>> input/output, etc.), and found nothing appropriate.
>
> I use:
>
>calc() {
> awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'
>}

And I use:

alias c "echo '\!*' | sed 's/:/;/g' | bc -l"

Once, though, I did something similar to what the OP proposes.
It was a C program that professed to be an expression evaluator.

The core of it was piping something into "gcc -" to create a shared lib,
then calling a function in that shared lib to get the "answer".

From: Younes Zouhair on 28 Dec 2009 04:06
On 12/25/2009 05:01 AM, Chris F.A. Johnson wrote:
> On 2009-12-25, Daniel de C?rdoba wrote:
>> Hi,
>> in the hope that this may be useful for somebody, I created this
>> easy shell calculator. It just creates a C++ program, compiles it,
>> runs it, and removes it.
>>
>> http://shell-calc.googlecode.com/
>>
>> I just needed a powerful calculator (bitwise operators, hexadecimal
>> input/output, etc.), and found nothing appropriate.
>
> I use:
>
> calc() {
> awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'
> }
>

I use:

function ca ()
{
awk "BEGIN{ print $* }"
}

is it any different?
From: Kenny McCormack on 28 Dec 2009 10:07
In article <hh9sdu$9hh$1(a)speranza.aioe.org>,
Younes Zouhair <poboxy(a)gmail.com> wrote:
....
>> Mr Perfect uses:
>>
>> calc() {
>> awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'
>> }
>>
>
>I use:
>
>function ca ()
>{
> awk "BEGIN{ print $* }"
>}
>
>is it any different?

His version just has a bunch of little quibbles that you probably don't
care about. I won't go point-by-point, but note that the 'exit' in his
version is there just-in-case you are using an old, decrepit version of
AWK (the ones where it tries to read from standard input even if the
program consists of only a BEGIN clause).

 |  Next  |  Last
Pages: 1 2
Prev: how to configure mysql for debug installation
Next: ~~~~~~~~~~~~~~ DIESEL MOTORCYCLE ~~~~~~~~~~~~~~