#calcit (calc)



Part of an expression parser and calculator.

This is a standalone version.

Currently I'm about to rewrite some things,
the ongoing work is in calc2.c

Originally I did want to implement the option of having
arithmetic expressions in config files, and to parse and compile them.
(For things like: if the mouse movement is faster than x/second, 
speed up with 2*x..)

Didn't write the config parser yet.

The recursive calculation has been a special pain in the ass.

It's tiny - 8k at OSX, compiled statically with minilib (optional)


6.3k linked statically with minilib, linux x64.


Working: (calc)
+ - * / 
% ^ $  	  ( Modulo, Power,  unsigned power-  ipowerui)
& | ! ~ X (Binary ops: ~ is bitwise not,  X is XOR)
L R 		  Shift left / right
< >       evals left side / right side, gives smaller / bigger value
=				  1, if equal


All operations are in integer mode, so no floating point yet.
Originally I did want to have some sort of scripting available for config files.



------


So, now there's also 'hal300'...
Not finished yet. 
But at least able to spit out the results in decimal, hex, oct and binary.

There might be the possibility to store functions.
I forgot the syntax.

calc.c, and calc2.c/libcalc.c do have different approaches.

Both are recursive, but while calc.c uses a case statement,
the latter ones do have jumptables.

The current version of linenoise didn't work, some trouble
with the columns.

Here's a fixed one.

BSD License.


misc 2013-2023
misc23 at posteo dot net
subtract 16 from 23