Gave it a try:
x←6
y←⍳5
(2=⎕nc'x') →→ x⍴y ←→ ⍴y ←←
1 2 3 4 5 1
)erase x
(2=⎕nc'x') →→ x⍴y ←→ ⍴y ←←
5
tryit←{(2=⎕nc'x') →→ x⍴y ←→ ⍴y ←←}
===================================================
SEGMENTATION FAULT
*** useless apl.lines (no CXXFLAGS=-rdynamic -gdwarf-2)
----------------------------------------
-- Stack trace at main.cc:102
----------------------------------------
0x7fd5887171e2 __libc_start_main
0x485c8a main
0x63dd25 Workspace::immediate_execution(bool)
0x4ef575 Command::process_line()
0x4efbe1 Command::finish_context()
0x4fc307 Executable::execute_body() const
0x5cd5c0 StateIndicator::run()
0x53bb21 Prefix::reduce_statements()
0x53b430 Prefix::push_END_error()
0x536636 Prefix::syntax_error(char const*)
0x4fc0a1 throw_apl_error(ErrorCode, char const*)
0x4fbe3f Error::update_error_info(StateIndicator*)
0x500770 Executable::set_error_info(Error&, Function_PC2) const
0x7fd588cfd1b0
0x48b0b7
========================================
========================================
====================================================
Probably not worth trying to fix this--it's too obscure.
[3] ~tinkering/apl/mtx/src >
On 10/23/24 12:30, Dr. Jürgen Sauermann wrote:
Hi Hendrik,
as far as I remember: in GNU APL a lambda is pretty much a regular
defined function.
A nomadic lambda is simply a dyadic lambda which test for the presence
for its left
argument (read: ⎕NC lambda = 2).Tour tryit needs to check that before
⍺ is referenced).
Best Regards,
Jürgen
On 10/23/24 16:55, Henrik Moller wrote:
To all APLers: In GNU APL, is there any way to define an ambivalent
lambda? I.e., if you define a lambda
tryit←{...}
is there any way to make it work with both
tryit 1
and
1 tryit 2
The Net has been unhelpful...
Thanks
