Namespace
Varianti

std::less

Da cppreference.com.
< cpp‎ | utility‎ | functional

Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.

La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui.

Click here for the English version of this page

 
C++
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
Original:
Relational operators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
Original:
Pairs and tuples
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
Original:
Swap, forward and move
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Funzione oggetti
Funzione wrapper
Original:
Function wrappers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
function(C++11)
mem_fn(C++11)
bad_function_call(C++11)
Associare
Original:
Bind
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
bind(C++11)
is_bind_expression(C++11)
is_placeholder(C++11)
_1, _2, _3, ...(C++11)
Wrapper di riferimento
Original:
Reference wrappers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
reference_wrapper(C++11)
ref
cref		(C++11)
(C++11)
Operatore wrapper
Original:
Operator wrappers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Negatori
Original:
Negators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Sconsigliata a leganti e adattatori
Original:
Deprecated binders and adaptors
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unary_function(deprecato)
binary_function(deprecato)
ptr_fun(deprecato)
pointer_to_unary_function(deprecato)
pointer_to_binary_function(deprecato)
mem_fun(deprecato)
mem_fun_t
mem_fun1_t
const_mem_fun_t
const_mem_fun1_t		(deprecato)
(deprecato)
(deprecato)
(deprecato)
mem_fun_ref(deprecato)
mem_fun_ref_t
mem_fun1_ref_t
const_mem_fun_ref_t
const_mem_fun1_ref_t		(deprecato)
(deprecato)
(deprecato)
(deprecato)
binder1st
binder2nd		(deprecato)
(deprecato)
bind1st
bind2nd		(deprecato)
(deprecato)
 
Elemento definito nell'header <functional>
template< class T >
struct less;
funzionale oggetto per effettuare confronti Utilizza operator< del tipo T.
Original:
Function object for performing comparisons. Uses operator< on type T.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Indice

[modifica] Note

[edit template]
Se il built-in operator< non fornisce totale dell'ordine puntatori, una specializzazione parziale di std::less per tipi puntatore viene fornito, che garantisce ordine totale.
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.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifica] Membri tipi

tipo
Original:
type
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 definition
result_type bool
first_argument_type T
second_argument_type T

[modifica] Membri funzioni

operator()
controlla se il primo argomento è' minore del secondo
Original:
checks if the first argument is less than the second
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(metodo pubblico)

std....: :........ meno ::
Original:
std::less::
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
operator()

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

Checks whether lhs is less than rhs.

Parameters

lhs, rhs -
valori da confrontare
Original:
values to compare
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Return value

true if lhs < rhs, false otherwise.

Exceptions

(none)

Possible implementation

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

[modifica] Vedi anche

(C++11)
fornisce di tipo misto proprietario basato su ordinamento di puntatori condivisi e debole
Original:
provides mixed-type owner-based ordering of shared and weak pointers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(classe template) [modifica]
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/utility/functional/less&oldid=27169"