Name
operator< function template — Compares for less-than
Synopsis
template <typename T1, typename T2>
bool operator<(const pair<T1,T2>& a, const pair<T1,T2>& b);Returns true if a is less than b, assuming that the first member is more significant than
second. That is, the return value
is a.first < b.first || (!(b.first < a.first) && a.second < b.second).
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