Non dereferencable iterator C++

[tonylamb]

Hi All,
I seem to be getting an error with my code when running Intel C++ compiler via Visual Studio 2005. The error generated is "Expression :map/set iterator not dereferencable"
I've given my code below in the hope that someone can spot the problem.
Many Thanks.......

[code=C++]
set<stl_index>: :iterator eit1, eit2=elmt_ids.b egin();
bool non_consecutive (false);

// 0. checking whether the elements are consecutively numbered
for ( eit2++, eit1=elmt_ids.b egin(); eit1!=elmt_ids. end(); eit1++, eit2++ )
if ( (*eit1)+1 != (*eit2) ) {
non_consecutive =true;
break; [/code]

[weaknessforcats]

I have no idea why you are getting that error. I took your code and added other code (all assumptions) and got it to compile an link on Visual Studio.NET 2005.

This is what I compiled:
[code=cpp]
struct stl_index
{
stl_index operator+(int arg) {stl_index temp; return temp;}
bool operator!=(stl_ index arg) {return true;}
};
set<stl_index> elmt_ids;
void fx()
{
set<stl_index>: :iterator eit1, eit2=elmt_ids.b egin();
bool non_consecutive (false);

// 0. checking whether the elements are consecutively numbered
for ( eit2++, eit1=elmt_ids.b egin(); eit1!=elmt_ids. end(); eit1++, eit2++ )
{
if ( (*eit1)+1 != (*eit2) )
{
non_consecutive =true;
break;
}
}
}
int main()
{

}
[/code]