https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68409
Bug ID: 68409
Summary: Garbage added to a map instead of object
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: f3rn4nd0.c354r+gcc at gmail dot com
Target Milestone: ---
Created attachment 36754
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36754&action=edit
gzip file with content description in message
Hy, I'm no expert in GCC or C++, so this is my try in reporting what seems to
be a bug in g++.
I have debugged this a lot, and finally concluded it should be related to GCC
when clang++ produced the expected result.
I don't really know where or what bug this is, so this may be duplicated, or
solved in new versions.
The symptom is that an apparent bug free code receives an SEGFAULT.
I deleted most of the code to achieve a small example, but it is still rather
verbose, since I have no idea where this bug comes from (notice that 20 objects
are inserted in a map and only 1 reveals this bug).
The bug appears in line 71016 of gestor_de_chaves.ii
Object c is a correct "chave" (this is the name of the object) but then, after
adding it to the "frq_chaves" map, it is turned to garbage.
I'm using Debian GNU/Linux 8
If I can be of service, please let me know.
Brief description of files included:
chave -> object type
euromilhoes -> main file
gestor_de_chaves -> code that reveals bug
entrada_saida -> code to read data file
euromilhoesOriginal.txt -> data file
Description of code:
My code reads a file, line by line, and creates an object with the data from
which line. Each line starts with a number, which I will call the object
number.
To list repeated objects, I read the file, and then create a map where the key
is the created object and the value is a list of object numbers.
However object 18 is never introduced into the map, instead garbage data is
added. I've debugged the further I could (inclusive into the map and list code
of the standard library) without success. The object is correctly created, but
not added.
