int main (void)>

{>

int arr [] = {1,5,8,3,6,2};>

int size = sizeof(arr) / sizeof(int);>

vector <int> vec (arr, arr+size);>

cout << endl;>

system ("pause");>

return 0;>

}

I don't see that you've added the data to your vector yet. The > constructor you use doesn't look like you are using it correctly. I

I tried this instead:>

vector<int> vec(size);>

for(int i = 0; i < size; i++) {> vec[i] = arr[i];> }>

And was able to debug:>

(gdb) print vec> $1 = {<std::_Vector_base­<int, std::allocator<int>­ >> = > {<std::_Vector_allo­c_base<int, std::allocator<int>­, true>> =

-- Brett>

PS. Don't use system("pause") if you are debugging a console program

No, I think his code works as intended. I ran it on linux, adding> some pedestrian debugging statements. I get the same result as> Brett, gdb doesn't like debugging STL sometimes.>

for completeness (not that it answers the original question, sorry):

Coosa C. wrote:> > using namespace std;> >

I don't see that you've added the data to your vector yet. The>constructor you use doesn't look like you are using it correctly.

I ran>your code, and there was nothing in the vec object (which is why you are>getting an error about the [] operator).>

I tried this instead:>

vector<int> vec(size);>

for(int i = 0; i < size; i++) {> vec[i] = arr[i];> }>

And was able to debug:>

(gdb) print vec>$1 = {<std::_Vector_base­<int, std::allocator<int>­ >> =>{<std::_Vector_al­loc_base<int, std::allocator<int>­, true>> = {_M_start =>0x8049360,> _M_finish = 0x8049378,> _M_end_of_storage = 0x804937­, <No data fields>}, <No data fields>}>(gdb) print vec[0]>$2 = (int &) @0x8049360: 1>(gdb) print vec[5]>$3 = (int &) @0x8049374: 2>

-- Brett>

PS. Don't use system("pause") if you are debugging a console program and>need to keep the window open, use getchar() instead, it's more portable>and doesn't create a second process.>

To unsubscribe, send a blank message to ><mailto:c-prog-uns­ubscribe-hHKSG33Tihh­bjbujkaE4pw@public.g­mane.org>.>Yahoo! Groups Links>

int main (void)>

{>

int arr [] = {1,5,8,3,6,2};>

int size = sizeof(arr) / sizeof(int);>

vector <int> vec (arr, arr+size);>

cout << endl;>

system ("pause");>

return 0;>

}

I don't see that you've added the data to your vector yet. The> constructor you use doesn't look like you are using it correctly. I

your code, and there was nothing in the vec object (which is why you

getting an error about the [] operator).>

I tried this instead:>

vector<int> vec(size);>

for(int i = 0; i < size; i++) {> vec[i] = arr[i];> }>

And was able to debug:>

(gdb) print vec> $1 = {<std::_Vector_base­<int, std::allocator<int>­ >> => {<std::_Vector_allo­c_base<int, std::allocator<int>­, true>> =

-- Brett>

PS. Don't use system("pause") if you are debugging a console program

need to keep the window open, use getchar() instead, it's more portable> and doesn't create a second process.

You wrote:> I tried this instead:>

vector<int> vec(size);>

-------------------­-->

Here you just declared a vector and reserved its size to equal size.> so you just created a vector and made it's size = 6.> However, the content inside is not defined and the compiler will > generate some numbers inside or maybe u will get some run time errors > when u try to display the such a content