Re: hashtable or map? (map inserts not behaving as I expect - and I cant find a decent simple example for hashtable)

Obnoxious User <OU@>
Sun, 21 Dec 2008 13:45:39 -0600
On Sun, 21 Dec 2008 16:44:33 +0000, (2b|!2b)==? wrote:

I have a list of items that I want to ignore during processing. I read a
list of items from file and populate a map variable. However, only a
subset of the items are being inserted in the map.

The struct for IgnoreItem looks like this:

struct IgnoreItem
        //ctors and op== omitted for the sake of brevity

    bool operator<(const IgnoreItem& key) const {
        if ( _stricmp(syb.c_str(), key.syb.c_str()) < 0)
            return true;
        else if (_stricmp(key.syb.c_str(), syb.c_str()) < 0)
            return false;
        else if ( xid < key.xid )
            return true ;
        else if ( key.xid < xid )
            return false;
        else if ( icid < key.icid)
            return true ;
            return key.icid < icid ;

    std::string syb;
    unsigned char xid ;
    long icid ;

That's just messed up.

Pseudo code:

if(syb < key.syb) return true;
if(syb == key.syb) {
    if(xid < key.xid) return true;
    if(xid == key.xid) {
        if(icid < key.icid) return true;
return false;

Do you see the pattern?


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