include path problem [WAS: STANDARD EUPHORIA LIBRARYS]
C.K. Lester wrote:
>Bob Elia wrote:
>>
>> I am currently using version 3.0.2 because the include path changes break
>> several of my programs; apparently, I'm the only person on earth with this
>> problem since it's never been mentioned.
>
>Just FMI, could you give an example where that change broke some code? I can't
>imagine a case where looking one more spot for include files would break code.
Hi CK,
Sorry for the delay. The problems I am having are namespace conflict errors,
so it's only in that sense that they break my code. The problem is that
I'm using a rather unorthodox, though legal under the old rules, EUINC.
I am aware that this is NOT recommended practice.
I had been in the habit of installing each new version of euphoria in a
different directory and then prepending it's include directory to EUINC.
So, the latest %EUDIR%\INCLUDE would always be at the beginning of EUINC
so a program would always find the current standard includes first.
New libraries would be installed in the current installation's ...\INCLUDE.
If I wanted to compare versions I could run a batch file which would change
the current installation by changing EUDIR and EUINC.
What happens under the new rules is that a library residing in an old
...\INCLUDE path which includes a standard file gets it from that old
directory. Then, later on, another file includes the same filename but
gets it from the current installation's ...\INCLUDE thus causing a
namespace error.
Some time ago I created a single directory, separate from any installation,
called \EULIBS\ for new libraries. I've managed to fix the errors I was getting
as they occur by moving old libraries out of the old .../INCLUDE/ directories
into EULIBS.
This looks simple at first glance but there are (or perhaps were) user
contributions which contained mods of files that were not renamed.
By the way, has anyone written anything which makes use of the new rules?
Now, another problem. Try this:
-- O:\TESTSAFE\TESTSAFE.EX
include machine.e -- copied from %EUDIR%\INCLUDE\safe.e as MACHINE.E
-- into this program's directory as per REFMAN.DOC
include database.e -- includes machine.e
atom a
a = allocate(1024)
? a
while get_key() = -1 do end while
-- end of file
This results in:
L:\progra~1\EUPHORIA\INCLUDE\database.e:127
A namespace qualifier is needed to resolve allocate.
allocate is defined as a global symbol in:
.\machine.e
L:\progra~1\EUPHORIA\INCLUDE\machine.e
mem0 = allocate(4)
^
Can anyone reproduce this error?
This used to work because of the "include once" behavior. What now?
If this is not due to my error, then perhaps the docs will have to
be changed to recommending renaming safe.e to machine.e in %EUDIR%\INCLUDE\.
This could be done with a batch file.
Bob
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