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std::less

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< cpp‎ | utility‎ | functional

 
 
 
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Defined in header <functional>
template< class T >
struct less;
Function-Objekt zum Durchführen von Vergleichen Verwendet operator< vom Typ T .
Original:
Function object for performing comparisons. Uses operator< on type T.
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Inhaltsverzeichnis

[Bearbeiten] Notes

Wenn die eingebaute operator< liefert keine totale Ordnung für Zeiger, wird eine partielle Spezialisierung std::less für Zeigertypen vorgesehen, die garantiert totale Ordnung .
Original:
If the built-in operator< does not provide total order for pointers, a partial specialization of std::less for pointer types is provided, which guarantees total order.
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[Bearbeiten] Mitglied Typen

Typ
Original:
type
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definition
result_type bool
first_argument_type T
second_argument_type T

[Bearbeiten] Member-Funktionen

operator()
prüft, ob das erste Argument weniger als der zweite ist
Original:
checks if the first argument is less than the second
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(öffentliche Elementfunktion)

std....: :........ weniger ::
Original:
std::less::
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operator()

bool operator()( const T& lhs, const T& rhs ) const;

Checks whether lhs is less than rhs.

Parameters

lhs, rhs -
Werten zu vergleichen
Original:
values to compare
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Return value

true if lhs < rhs, false otherwise.

Exceptions

(none)

Possible implementation

bool operator()(const T &lhs, const T &rhs) const 
{
    return lhs < rhs;
}

[Bearbeiten] Siehe auch

bietet mixed-type owner-basierte Bestellung von gemeinsamen und schwache Zeiger
Original:
provides mixed-type owner-based ordering of shared and weak pointers
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(Klassen-Template) [edit]