Re: std::vectpr "Replace" Function?

From:
Victor Bazarov <v.bazarov@comcast.invalid>
Newsgroups:
comp.lang.c++
Date:
Fri, 17 Oct 2014 10:50:05 -0400
Message-ID:
<m1raaq$omt$1@dont-email.me>
On 10/16/2014 7:29 PM, MikeCopeland wrote:

    Is there no "replace" function for a std::vector? I know that I can
modify a specific vector object by using the .at() operator or the []
indexing, but that's not really what I after. I have the following
declarations:

struct Display
{
    int offset;
    char dCode;
    string p1, p3, p8;
} dispWork;
    vector<Display> dispVect;
    vector<Display>::iterator dIter;

    for(dIter = dispVect.begin(); dIter != dispVect.end(); dIter++)


   the increment should not happen if you erase. Move it inside the
loop body and only perform it if *not* condition1.

    {
       if(condition1) dIter = dispVect.erase(dIter);
       else if(condition2) dispVect.replace(dispWork); //????
    }

    After populating the vector, I wish to use the iterator to walk
through the vector tp delete or change certain elements. I don't want
to use [] indexing during this process because I'm also erasing/removing
elements.


....incorrectly!

 > This combined processing will fail by invalidating the

iterator when I delete elements, so I'd prefer to use some "replace"
function for the vector elements I'm saving and changing.


What Juha suggested *is* how you replace. Make sure the rest is OK.

    There doesn't seem to be any STL function that accomodates my needs
here...or am I wrong? Please advise. TIA


V
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