g++ BUG?

[Mark Wall]

Thanks!  Now I need ONLY ONE more piece of advice.  I successfully compile
code with g++ originating from 1) old gcc originally on dec-alpha and 
2) newly installed gcc-3.0.1 ... and get drastically different results.
Method 1 yields working code with usable results; method 2 yields working
code with unusable results.  I have included 4 files to help you quickly
see the problem:

	read_pdb.c    - source
	Test.pdb      - data
	LOG_gcc-2.x   - result with old g++ (A)
	LOG_gcc-3.x   - result with new g++ (B)

The goal is to read and print ATOM records in a PDB file (formatted ascii
file of atomic coordinates).  

Simply,   %g++ read_pdb.c
          %a.out Test.pdb

That's it.  So, LOG_gcc-2.x shows success and is almost a mirror of the
Test.pdb.  As you will see, LOG_gcc-3.x does not.  I am convinced that
this is just ONE fundamental problem I do not understand (e.g. building
gcc-3.0.1 wrong, or incorrectly assuming g++ defaults that have changed,
or ...?).

Can you help?


Mark Wall
HHMI/UT Southwestern Med. Ctr.
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