c++ 98, vector, remove every element except the first one [duplicate]

Question

Arr! This is how I do it, but it's kinda long. Anything more compact? (I am using cpp 98!)

std::vector<Object> allObjs;

// ... allObjs gets filled ...

// Now get back a vector with only the first element in allObjs
std::vector<Object> justTheFirstElemOfObjs;
justTheFirstElemOfObjs.push_back(allObjs.front());

allObjs = justTheFirstElemOfObjs;

Answer 1

allObjs.resize(1); should do the trick.