Definition
An instance p of type three_tuple<A,B,C> is a three-tuple (a, b, c) of variables of types A, B, and C, respectively.
Related types are two_tuple, three_tuple, and four_tuple.
#include < LEDA/tuple.h >
Creation
| three_tuple<A,B,C> | p | creates an instance p of type three_tuple<A,B,C>. All components are initialized to their default value. |
| three_tuple<A,B,C> | p(A u, B v, C w) | creates an instance p of type three_tuple<A,B,C> and initializes it with the value (u, v, w). |
Operations
| A& | p.first() | returns the A-component of p. If p is a const-object the return type is A. |
| B& | p.second() | returns the B-component of p. If p is a const-object the return type is B. |
| C& | p.third() | returns the C-component of p. If p is a const-object the return type is C. |
| bool | p == q | equality test for three_tuples. Each of the component types must have an equality operator. |
| int | compare(three_tuple<A,B,C> p, three_tuple<A,B,C> q) | |
| lexicographic ordering for three_tuples. Each of the component types must have a compare function. | ||
| int | Hash(three_tuple<A,B,C> p) | |
| hash function for three_tuples. Each of the component types must have a Hash function. | ||
Implementation
The obvious implementation is used.