Re: glibc detected: double free or corruption
On Nov 15, 10:21 am, chuan <chuan...@googlemail.com> wrote:
I define a class with a private dynamical member
Class A
{
double *data;
public:
A();
~A();
}
;
In constructor I assign a block memory to data,
A::A(){
data = new double [size];
}
What is size?
and delete it in the desturctor
A::~A(){
delete [] data;
}
So far so good, but when I trying to overload some arithmetic operator
(+ or /),
I receive the "glibc detected: double free or corruption" error. Here
is my code
A A::operator+(A add){
A tmp;
for (int i=0; i<size; i++)
tmp[i] = this->data[i] + add.data[i];
return tmp;
Passing by value and returning a copy by value. Bad news. Think member
data (which is a pointer). Rename member to p_data and you'll get it.
}
Please give me a hint.
don't use pointers, pass by reference to constant and use dynamic
containers.
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