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Newsgroups: comp.lang.ada
Date: Wed, 19 Apr 2023 00:09:46 -0700 (PDT)
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Subject: strange cursor in nested containers
From: Mario Blunk <mario.blunk.gplus@gmail.com>
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Hello out there,
I've put together a demo to reproduce a strange behavior of a cursor.

https://github.com/Blunk-electronic/ada_training/blob/master/src/containers/demo/nested/nest_1.adb

Description:
Inside the procedure "get_line" the cursor "result" is assigned only once (on match). Since there is no further match, in the course of the procedure, I assume that "result" is never changed. So the expected output should be:

net: A
L1 S: 2.00000E+00 E: 3.00000E+00
L2 S: 2.00000E+00 E: 3.00000E+00
net: B
L2 S: 2.00000E+00 E: 3.00000E+00
L3 S: 2.00000E+00 E: 3.00000E+00

but the actual output is:

net: A
L1 S: 2.00000E+00 E: 3.00000E+00
L2 S: 2.00000E+00 E: 3.00000E+00
net: B
L2 S: 1.20000E+01 E: 1.30000E+01
L3 S: 7.47956E-39 E: 0.00000E+00 -- changes randomly

Thanks for your help.