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std::div, std::ldiv, std::lldiv

Da cppreference.com.
< cpp‎ | numeric‎ | math

 
 
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(C++11)
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Defined in header <cstdlib>
std::div_t     div( int x, int y );
std::ldiv_t    div( long x, long y );
std::lldiv_t   div( long long x, long long y );
(dal C++11)
std::ldiv_t   ldiv( long x, long y );
std::lldiv_t lldiv( long long x, long long y );
(dal C++11)
Defined in header <cinttypes>
std::imaxdiv_t div( std::intmax_t x, std::intmax_t y );
(dal C++11)
std::imaxdiv_t imaxdiv( std::intmax_t x, std::intmax_t y );
(dal C++11)
Calcola il quoziente (il risultato del x/y espressione) e restante (il risultato del x%y espressione) simultaneamente. (dal C++11)
Original:
Computes the quotient (the result of the expression x/y) and remainder (the result of the expression x%y) simultaneously. (dal C++11)
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Calcola quoziente e resto contemporaneamente. Il quoziente è il quoziente algebrica con qualsiasi parte frazionaria scartata (troncato a zero). Il resto è tale che quot * y + rem == x. (C fino + 11)
Original:
Computes quotient and remainder simultaneously. The quotient is the algebraic quotient with any fractional part discarded (truncated towards zero). The remainder is such that quot * y + rem == x. (C fino + 11)
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Indice

[modifica] Note

Fino al C + +11, la direzione arrotondamento del quoziente e il segno del resto nel built-in operatori di divisione e resto è stato definito dall'implementazione se uno degli operandi è stato negativo, ma è stato ben definito in std::div.
Original:
Until C++11, the rounding direction of the quotient and the sign of the remainder in the built-in division and remainder operators was implementation-defined if either of the operands was negative, but it was well-defined in std::div.
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[modifica] Parametri

x, y -
valori interi
Original:
integer values
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[modifica] Valore di ritorno

Struttura di tipo div_t, ldiv_t, ldiv_t, imaxdiv_t definita come:
Original:
Structure of type div_t, ldiv_t, ldiv_t, imaxdiv_t defined as:
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struct div_t {
    int quot;   // The quotient
    int rem;    // The remainder
};
 
struct ldiv_t {
    long quot;   // The quotient
    long rem;    // The remainder
};
 
struct lldiv_t {
    long long quot;   // The quotient
    long long rem;    // The remainder
};
 
struct imaxdiv_t {
    std::intmax_t quot;   // The quotient
    std::intmax_t rem;    // The remainder
};

[modifica] Vedi anche

resto dell'operazione divisione floating point
Original:
remainder of the floating point division operation
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(funzione) [edit]