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The TR1 Tuple provides the standard boolean relational operators.
Notation
T1
... TN,
U1 ...
UNTuple element types
P1
... PNParameter types
Ti,
Ui
The type of the ith
element of a tuple
Pi
The type of the ith
parameter
template<typename T1, typename T2, ..., typename TN, typename U1, typename U2, ..., typename UN> bool operator==( const tuple<T1, T2, ..., TN>& lhs, const tuple<U1, U2, ..., UN>& rhs);
Requirements: For all i,
1 <=
i <
N,
is a valid expression returning a type that is convertible to get<i>(lhs) == get<i>(rhs)bool.
Semantics: Returns true
if and only if
for all get<i>(lhs) == get<i>(rhs)i. For any 2 zero
length tuples e and f, e
== f
returns true.
template<typename T1, typename T2, ..., typename TN, typename U1, typename U2, ..., typename UN> bool operator<( const tuple<T1, T2, ..., TN>& lhs, const tuple<U1, U2, ..., UN>& rhs);
Requirements: For all i,
1 <=
i <
N,
is a valid expression returning a type that is convertible to get<i>(lhs) < get<i>(rhs)bool.
Semantics: Returns the lexicographical
comparison of between lhs
and rhs.
template<typename T1, typename T2, ..., typename TN, typename U1, typename U2, ..., typename UN> bool operator!=( const tuple<T1, T2, ..., TN>& lhs, const tuple<U1, U2, ..., UN>& rhs);
Requirements: For all i,
1 <=
i <
N,
is a valid expression returning a type that is convertible to get<i>(lhs) == get<i>(rhs)bool.
Semantics: Returns !(lhs == rhs).
template<typename T1, typename T2, ..., typename TN, typename U1, typename U2, ..., typename UN> bool operator<=( const tuple<T1, T2, ..., TN>& lhs, const tuple<U1, U2, ..., UN>& rhs);
Requirements: For all i,
1 <=
i <
N,
is a valid expression returning a type that is convertible to get<i>(rhs) < get<i>(lhs)bool.
Semantics: Returns !(rhs < lhs)
template<typename T1, typename T2, ..., typename TN, typename U1, typename U2, ..., typename UN> bool operator>( const tuple<T1, T2, ..., TN>& lhs, const tuple<U1, U2, ..., UN>& rhs);
Requirements: For all i,
1 <=
i <
N,
is a valid expression returning a type that is convertible to get<i>(rhs) < get<i>(lhs)bool.
Semantics: Returns rhs
< lhs.
template<typename T1, typename T2, ..., typename TN, typename U1, typename U2, ..., typename UN> bool operator>=( const tuple<T1, T2, ..., TN>& lhs, const tuple<U1, U2, ..., UN>& rhs);
Requirements: For all i,
1 <=
i <
N,
is a valid expression returning a type that is convertible to get<i>(lhs) < get<i>(rhs)bool.
Semantics: Returns !(lhs < rhs).