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POstd::vector overwriting final value, rather than growing?
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copied!<p>I'm having an issue where using <code>vector.push_back(value)</code> is overwriting the final value, rather than appending to the end. Why might this happen? I have a sample item in the vector, so it's size never hits zero. Below is the code..</p> <pre><code>void UpdateTable(vector<MyStruct> *Individuals, MyStruct entry) { MyStruct someEntry; bool isNewEntry = true; for (int i = 0; i < Individuals->size(); i++) { if (!(strcmp(Individuals->at(i).sourceAddress, entry.sourceAddress))) { isNewEntry = false; //snip. some work done here. } } if(isNewEntry) { Individuals->push_back(entry); } } </code></pre> <p>This let's my first "sample" value stay in, and will allow for just one more item in the vector. When 2 new entries are added, the second overwrites the first, so the size is never larger than 2.</p> <p>edit: More code, since this is apparently not the issue?</p> <pre><code>void *TableManagement(void *arg) { //NDP table to store discovered devices. //Filled with a row of sample data. vector<MyStruct> discoveryTable; MyStruct sample; sample.sourceAddress = "Sample"; sample.lastSeen = -1; sample.beaconReceived = 1; discoveryTable.push_back(sample); srand(time(NULL)); while(1) { int sleepTime = rand() % 3; sleep(sleepTime); MyStruct newDiscovery = ReceivedValue(); if (newDiscovery.lastSeen != -1000) //no new value from receivedValue() { UpdateTable(&discoveryTable, newDiscovery); } printTable(&discoveryTable); } return NULL; } </code></pre>

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