vector : reserve(LONG_MA X)

[Alex Vinokur]

Method vector.reserve( ) returns no value.
How can we prevent the following situation?

====== foo.cpp ======
#include <climits>
#include <vector>
#include <iostream>
using namespace std;

int main()
{
vector<int> v (100e);
cout << v.capacity() << endl;
v.reserve(LONG_ MAX);
cout << v.capacity() << endl;
return 0;
}
=============== ======

====== Compilation & Run ======

$ g++ -v
[---omitted---]
gcc version 3.3.1 (cygming special)

$ g++ -W -Wall foo.cpp

$ a
100
Aborted (core dumped)

=============== =============== =

--
Alex Vinokur
mailto:al****@c onnect.to
http://mathforum.org/library/view/10978.html

[Peter van Merkerk]

"Alex Vinokur" <al****@big.foo t.com> wrote in message
news:c6******** ****@ID-79865.news.uni-berlin.de...

Method vector.reserve( ) returns no value.
How can we prevent the following situation?

====== foo.cpp ======
#include <climits>
#include <vector>
#include <iostream>
using namespace std;

int main()
{
vector<int> v (100e);
cout << v.capacity() << endl;
v.reserve(LONG_ MAX);
cout << v.capacity() << endl;
return 0;
}
=============== ======

====== Compilation & Run ======

$ g++ -v
[---omitted---]
gcc version 3.3.1 (cygming special)

$ g++ -W -Wall foo.cpp

$ a
100
Aborted (core dumped)

If LONG_MAX > std::vector::ma x_size() with your standard library
implementation it should throw a std::length_err or exception.

--
Peter van Merkerk
peter.van.merke rk(at)dse.nl

[Pete Becker]

Alex Vinokur wrote:

Method vector.reserve( ) returns no value.
How can we prevent the following situation?

====== foo.cpp ======
#include <climits>
#include <vector>
#include <iostream>
using namespace std;

int main()
{
vector<int> v (100e);
cout << v.capacity() << endl;
v.reserve(LONG_ MAX);
cout << v.capacity() << endl;
return 0;
}
=============== ======

====== Compilation & Run ======

$ g++ -v
[---omitted---]
gcc version 3.3.1 (cygming special)

$ g++ -W -Wall foo.cpp

$ a
100
Aborted (core dumped)

=============== =============== =

Catch the exception.

--

Pete Becker
Dinkumware, Ltd. (http://www.dinkumware.com)