1. HELP! scope or interpreter problem (I think) with include files
- Posted by jessedavis Dec 27, 2010
- 1359 views
I develop on a Linux system using svn3379. Works perfectly. Port to windows vista with a newly loaded version 4.0 I begin to have numerous problems with include files like map.e, prime.e, etc. The error message says that a value internal to the include file has not been initialized. I look at the include code and the variable has clearly been set. Any thoughts as to what I am doing incorredtly> ex.err output.....
C:\euphoria\include\std\primes.e:187 in function next_prime()
variable list_of_primes has not been assigned a value
n = 30
fail_signal_p = -1
time_out_p = 1
i = <no value>
... called from c:\euphoria\include\std\map.e:385 in function new()
initial_size_p = 690
buckets_ = 30
new_map_ = <no value>
temp_map_ = <no value>
the code from the primes.e file-namespace primes include std/search.e sequence list_of_primes = {2,3} -- Initial seedings. --****
Any and all help appreciated.
Regards, jd
2. Re: HELP! scope or interpreter problem (I think) with include files
- Posted by jimcbrown (admin) Dec 27, 2010
- 1325 views
I develop on a Linux system using svn3379. Works perfectly. Port to windows vista with a newly loaded version 4.0 I begin to have numerous problems with include files like map.e, prime.e, etc. The error message says that a value internal to the include file has not been initialized. I look at the include code and the variable has clearly been set. Any thoughts as to what I am doing incorredtly> ex.err output.....
C:\euphoria\include\std\primes.e:187 in function next_prime()
variable list_of_primes has not been assigned a value
n = 30
fail_signal_p = -1
time_out_p = 1
i = <no value>
... called from c:\euphoria\include\std\map.e:385 in function new()
initial_size_p = 690
buckets_ = 30
new_map_ = <no value>
temp_map_ = <no value>
the code from the primes.e file-namespace primes include std/search.e sequence list_of_primes = {2,3} -- Initial seedings. --****
Any and all help appreciated.
Regards, jd
Only think I can think of is that somehow the order of includes and forward referencing are interacting such that a function in std/primes.e that uses list_of_primes is getting called before the main program code - or the top level code of the include file - is run.
The only dependency that I can see is std/map.e depends on std/primes.e depends on std/search.e
It's not obvious to me what you could be doing to cause that error. In that light, it does seem like a bug in 4.0.0
If you can post a simple test case (one that causes the error, and one that'll work after copy&pasting), that would help greatly to finding the cause.
3. Re: HELP! scope or interpreter problem (I think) with include files
- Posted by DerekParnell (admin) Dec 28, 2010
- 1235 views
... have numerous problems with include files like map.e, prime.e, etc. The error message says that a value internal to the include file has not been initialized. I look at the include code and the variable has clearly been set. Any thoughts as to what I am doing incorredtly ...
Here is some sample code that will give the error message you mentioned...
object x = next_prime(1000) include std/primes.e
will give us ...
c:\projects\eu_proj\eu40\include\std\primes.e:187 in function next_prime() variable list_of_primes has not been assigned a value ... called from c:\temp\test.ex:2 --> See ex.err
The workaround is to move the include statement to somewhere before the first use of any of its routines. eg...
include std/primes.e object x = next_prime(1000)
As a general principle, always put your include files near the top of your application code, before your code executes any routine from the included files.
