c++ - Multimap insertion crashes after 1 insert -


i writing program spellchecker, implements crude version(for simplicity) of soundexing incorrectly spelled word.

goal: while iterating set, holds words in dictionary, soundex code generated, inserted multimap soundex being key, , word dictionary being associated data.

issue: after loop iterates once, program crashes. have narrowed down issue being actual insertion itself.

note: d pointer holds multimap. multimap sndxmap;

code:

replacementchooser::replacementchooser(const dictionaries& dictionary) {  //loop through dictionary, giving word extendedsoundex for(dictionaries::iterator = dictionary.begin(); it!=dictionary.end();it++)   {        string code = extendedsoundex(*it,-1);        d->sndxmap.insert(multimap<string,string>::value_type(code,*it));   //crashes       }

}


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