Re: simple vector question

[Daniel dot Walker at bowneglobal dot com]

vector_type v_c[max];

declares an array of vector_types,

vector_type::reference m = v_c[i]; // 18

deterrences the array and returns the element at index i which is a
vector_type and can't be casted to an int;

I think what you mean to do is initialize the size of the vector to max.
You need to use the constructor for that:

vector_type v_c(max);

Good luck.

Daniel




                                                                                                        
                    Benjamin Kosnik                                                                     
                    <bkoz@redhat.com>       To:     libstdc++@gcc.gnu.org                               
                    Sent by:                cc:                                                         
                    libstdc++-owner@g       Subject:     simple vector question                         
                    cc.gnu.org                                                                          
                                                                                                        
                                                                                                        
                    12/11/2001 12:44                                                                    
                    PM                                                                                  
                                                                                                        
                                                                                                        





I must be losing it...

#include <vector.h>

void test01()
{
  using namespace std;
  typedef int  mask;
  typedef vector<mask>        vector_type;

  const int max = 255;
  vector_type v_c[max];
  vector_type v_de[max];

  int i = 0;
  mask mask_test = static_cast<mask>(0);
  mask mask_is = static_cast<mask>(0);
  vector_type::reference m = v_c[i]; // 18
  // mask& m = v_c[i];
  m = mask_is;
}


int main()
{
  return 0;
}


Gives:

vec_tester.cc: In function `void test01 ()':
vec_tester.cc:18: cannot convert `vector<mask, allocator<mask> >' to
`int' in converting


What does this mean? Is this correct? I'd expect

  vector_type::reference m = v_c[i]; // 18

to be

  vector_type::reference m = vector_type::reference; // 18

which is

  int&  m = int &; // 18


??

I must be missing something simple.

(And what's up with this error message?)

-benjamin