The problem I have, I have to add to a vector, the missing chars.
For example I have initially

s,a,p,i,e,n,t,i,a

and I have to add missing chars to it  

s,a,p,i,e,n,t,i,a,**b,c,d ...**

I am trying to use this code to search for an existing value.

```
for(char c='a';c!='z';++c)
    {
        if (vec.end()!=find(vec.begin(),vec.end(),c))
            vec.push_back(c);
    }

```

The find returns `last` when it fails to locate a value. But how do I know if last value was in it?

**EDIT**

When the for loop starts, for 'a' returns vec.end() so it should not go in, but goes in, and adds 'a' again in the end.

See this in debugger
[alt text http://img203.imageshack.us/img203/2048/bb1f.jpg](http://img203.imageshack.us/img203/2048/bb1f.jpg)

(The bug I have, the value in last position gets inserted twice, I have to omit this)