Clac -- 'The programmer's manual'



Adding new functions to the code of Clac is quite easy. All you have
to do is:

	A. To add a single parameter function:

		1. Add the name of the function to the string in the
		   'par' structure in the appropriate place.
		2. Add one to the value of 'par.mfunc' variable in
		   the same structure.
		3. Add one case to the end of the switch structure
		   in the 'eval_func()' function and make the desired
		   function. Function will get it's parameter from
		   the 'value' variable and returns the result in
		   the same variable.

	B. To add a multi parameter function:

		1. Add the name of the function to the end of the
		   string in the 'par' structure.
		2. Add one case to the end of the switch structure
		   in the 'eval_mfunc()' function and make the desired
		   function. Parameters for the function are in the
		   variables 'val.buf[a]' - 'val.buf[b]' and their
		   count in the 'params' variable.
		3. Result of the function should be returned in the
		   'value' variable.


Conditions of distribution (to be expired at the end of the 20th
century ;-):

	1. No charge is taken from the distribution.
	2. Modified version(s) should have the exact description
	   about the modifications made, their author and a date.
	   Also one copy of the modified source should be sent
	   to the E-mail address: t150315@cc.tut.fi.
	3. All the now included files (clac.h clac.c and clac.txt)
	   should be included into the distributed package.
	4. Author isn't responsible for any damages / losses of
	   money, job etc. resulting from the proper or improper
	   use of this program (ie. the standard disclaimer).
	   As it is, this program might still contain
	   numerous bugs.


	Eero Tamminen		(E-mail (1994-?): t150315@cc.tut.fi)