Hung-Chai Info Company (whtang@monica) wrote:
: The vector class doesn't parameterize any pointer type. For example,
: #include <vector.h>

: main()
: {
:   vector<int *> a(1000, (int *) 0);
:   for (int i = 0; i < 1000; i++)
:     a[i] = new int(rand());

:   for (i = 0; i < 1000; i++)
:     cout << a[i] << '\t';

:   cout << endl << endl;

:   return 0;
: }

: compiler complaints that capacity() call invalid operand - of
: end_of_storage - begin().

: g++ -o vector vector.cc
: /opt/gnu/lib/g++-include/vector.h: In method `unsigned int vector<int *>::capacity() const':
: /opt/gnu/lib/g++-include/vector.h:77: invalid operands to binary -

: whtang@dblab.cs.nchu.edu.tw
: tommy

The problem is fixed after replace the iterator begin() by start.
I don't know why, but it works.
end_of_storage is of type const iterator.
begin() is of type const_iterator.
start is of type const iterator.
Maybe it dues to type mismatch.

whtang@dblab.cs.nchu.edu.tw
tommy

The vector class doesn't parameterize any pointer type. For example,
#include <vector.h>

main()
{
  vector<int *> a(1000, (int *) 0);
  for (int i = 0; i < 1000; i++)
    a[i] = new int(rand());

  for (i = 0; i < 1000; i++)
    cout << a[i] << '\t';

  cout << endl << endl;

  return 0;
}

compiler complaints that capacity() call invalid operand - of
end_of_storage - begin().

g++ -o vector vector.cc
/opt/gnu/lib/g++-include/vector.h: In method `unsigned int vector<int *>::capacity() const':
/opt/gnu/lib/g++-include/vector.h:77: invalid operands to binary -

whtang@dblab.cs.nchu.edu.tw
tommy