[Gm2] Are there standard functions such as FLOAT and TRUNC?

[Carl Glassberg]

Hello, again.

Are there standard functions such as FLOAT and TRUNC for conversion to/from 
SHORTREAL/REAL/LONGREAL?

If not, can VAL(LONGREAL, ...) and so forth be used?

I am planning to test SHORTREAL/REAL/LONGREAL.

So far, this is what gm2 versions of Machar yield as machine constants for 
floating-point:

(Created by converting machar.c to three gm2 versions, one each for
SHORTREAL, REAL, LONGREAL)
--------------------------------------------------------------
(* SHORTREAL = float *)
ibeta =           2
it =              24
irnd =            5
ngrd =            0
machep =         -23
negep =          -24
iexp =            8
minexp =         -126
maxexp =          128
eps =   0.1192092E-6
epsneg =   0.5960464E-7
xmin =  0.1175494E-37
xmax =  3.4028234E+38
---------------------------------------
(* REAL = double *)
ibeta =           2
it =             53
irnd =            5
ngrd =            0
machep =        -52
negep =         -53
iexp =           11
minexp =        -1022
maxexp =         1024
eps =   0.222044604925031E-15
epsneg =   0.111022302462515E-15
xmin =  0.222507385850720E-307
xmax =  1.797693134862315E+308
-----------------------------------------------
(* LONGREAL = long double *)
ibeta =         2
it =            64
irnd =          5
ngrd =          0
machep =       -63
negep =        -64
iexp =          15
minexp =       -16382
maxexp =        16384
eps =    0.108420217248550443E-18
epsneg =    0.542101086242752217E-19
xmin =  0.336210314311209350E-4931
xmax =  1.189731495357231764E+4932
----------------------------------------------------

Carl