Re: STL vector core dump

From:
James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++
Date:
26 Apr 2007 03:02:14 -0700
Message-ID:
<1177581734.292565.293950@r3g2000prh.googlegroups.com>
On Apr 24, 3:42 pm, Akila <cakilandesw...@gmail.com> wrote:

My application is built on sun solaris 9.0. 5.9 Generic_118558-26
sun4u sparc SUNW,Sun-Fire-V210

 compiler : Sun C++ 5.5 Patch 113817-14 2005/07/19

I am creating a vector of int at the beginning of my application
(before the application does anything) and copying it to another
vector . my application segmentation faults!!!

std::vector<int> v1;
std::vector<int> v2 =v1;

The code works fine when the vector v1 is not empty.
std::vector<int> v1;
v1.push_back(10);
std::vector<int> v2 =v1;

Even the below code worked
std::vector<int> v1(1);
std::vector<int> v2 =v1;

I looked at the copy constructor for the vector and it does
not seem to be checking for zero size.

Can anyone please explain why and also how to solve the problem
becuase i have several functions in my application that return a
vector (when a vector is returned , the copy constructor is called)
and the vector can be empty.


There must be something else you're doing wrong. I can't
reproduce the problem, and I tried with all three versions of
Sun CC I have handy: 5.1, 5.5 and 5.8 (both with
-library=stlport4 and without). Could you please post a minimum
example that reproduces the problem.

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