You did not initialize the stream fin
On 08/03/2012 04:59, "freegyp" <[email protected]> wrote:
I have written a program in C++ today but segfault occurred when I ran
the program. DDD told me that the segfault occurred when I was trying
to create the ifstream object at the start of "int main()". The code
is as following(board is a struct created by my own):
typedef multiset<int> mint;
int main()
{
ifstream fin;
fin.open("B-small-practice.in");
ofstream fout("gypBsmall.out");
int T,N;
mint ns;
fin>>T;
for(int i=0;i<T;i++)
{
fin>>N;
for(int j=0;j<N;j++)
{
int temp;
fin>>temp;
ns.insert(temp);
}
board new1(ns);
fout<<"Case #"<<i+1<<": "<<new1.findsec()<<endl;
ns.clear();
}
fin.close();
fout.close();
return 0;
}
It's not the first time I use ifstream but I have never seen segfault
like this. Can anybody tell me what's wrong with the program?
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