* harbour/include/hbclass.ch
+ added:
ON ERROR FUNCTION <FuncName>
OPERATOR <op> FUNCTION <FuncName> <scope>
* harbour/include/hbapicls.h
* harbour/source/vm/classes.c
* harbour/source/vm/hvm.c
+ added support for overloading right side $ operator
* harbour/contrib/xhb/xhbfunc.c
* rewritten xhb_ains() and xhb_adel() in C
* harbour/contrib/xhb/xhb.ch
* changed AINS() conversion to be xHarbour compatible
* harbour/contrib/xhb/Makefile
+ added xhb.ch to PRG_HEADERS so it's installed automatically
during 'make install'
* harbour/contrib/xhb/Makefile
+ harbour/contrib/xhb/xhbmsgs.c
* harbour/contrib/xhb/xhbcomp.prg
+ added support for $ operator used with hashes and arrays
on right side working _exactly_ like in xHarbour.
+ added support for negative indexes in used in [] operator
for array and strings.
Please remember that standard harbour build (without
HB_COMPAT_XHB flag) generate warning for negative indexes,
if you wan to pacify them then instead of var[-1] use var[(-1)]
+ added support for assign string characters with [] index.
Please remember that for standard harbour build (without
HB_COMPAT_XHB flag) you have to use -ks compile time switch
if you want to assign strings in such way because this feature
needs different PCODE, f.e. try to compile this code:
proc main()
local s:="ABC"
s[(-1)] := "*"
? s
return
with and without -ks switch
+ added support for accessing hash items using OO interface, f.e.:
proc main()
local h:={"ABC"=>123.45,"XYZ"=>567.89}
? h["ABC"], h["XYZ"]
? h:ABC, h:XYZ
h:ABC+=1000
h:XYZ:=-2000
? h:ABC, h:XYZ
return
All of the above extensions are written in C code so the speed
overhead is very small. Harbour evaluates PCODE faster then xHarbour
so in speed tests where above operators are executed in loop without
any other code the xHarbour results with native support are comparable
with Harbour ones where above operators are overloaded using scalar
classes so in normal code you should not find any difference with
one exception for assigning characters in very long strings.
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