Re: Problems with GNAT

[dewar@cs.nyu.edu (Robert Dewar)]

Tim  <blandtg@dcs.gla.ac.uk> wrote (with deletions):

   I have been writing bits of Ada code on a UNIX system.
   I have developed a package of utilities for sound generation.
   
   Upon trying to run a driver program (packtest.adb) I had written to
   exercise this package of facilities I kept getting a constraint error.
   
   In attempting to locate this bug I used gdb.
   Which eventually came up with:-
   (gdb) step
   __gnat_raise_constraint_error () at a-raise.c:154
   a-raise.c:154: No such file or directory.
   Current language:  auto; currently c
   (gdb) where
   #0  __gnat_raise_constraint_error () at a-raise.c:154
   #1  0x13bd8 in packtest () at packtest.adb:64
   #2  0x236c in main (argc=1, argv=0xeffff97c) at b_packtest.c:35
   
   Does anybody know what is going on here?

This clearly shows you are getting a constraint error at packtest.adb:64.

If you think this constraint error is not a legitimate consequence of
your program, then narrow down the example as much as possible, and
send it along to report@gnat.com.