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std::round, std::lround, std::llround

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< cpp‎ | numeric‎ | math

 
 
Numerik-Bibliothek
Gemeinsame mathematischen Funktionen
Floating-Point-Umgebung
Komplexe Zahlen
Numerische Arrays
Pseudo-Zufallszahlen
Compile-time rationale Arithmetik (C++11)
Generische numerische Operationen
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Gemeinsame mathematischen Funktionen
Funktionen
Original:
Functions
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Grundlegende Bedienung
Original:
Basic operations
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remainder(C++11)
remquo(C++11)
fma(C++11)
fmax(C++11)
fmin(C++11)
fdim(C++11)
nan
nanf
nanl
(C++11)
(C++11)
(C++11)
Exponentialfunktionen
Original:
Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
Power-Funktionen
Original:
Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
Trigonometrische und hyperbolische Funktionen
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
Fehler-und Gamma-Funktionen
Original:
Error and gamma functions
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erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
Nächste ganze Zahl Fließkomma-Operationen
Original:
Nearest integer floating point operations
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ceil
floor
round
lround
llround
(C++11)
(C++11)
(C++11)
trunc(C++11)
nearbyint(C++11)
rint
lrint
llrint
(C++11)
(C++11)
(C++11)
Floating-Point-Manipulation Funktionen
Original:
Floating point manipulation functions
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ldexp
scalbn
scalbln
(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward
(C++11)
(C++11)
copysign(C++11)
Klassifizierung / Vergleich
Original:
Classification/Comparison
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fpclassify(C++11)
isfinite(C++11)
isinf(C++11)
isnan(C++11)
isnormal(C++11)
signbit(C++11)
isgreater(C++11)
isgreaterequal(C++11)
isless(C++11)
islessequal(C++11)
islessgreater(C++11)
isunordered(C++11)
Makro Konstanten
Original:
Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
 
Defined in header <cmath>
float round( float arg );
(seit C++11)
double round( double arg );
(seit C++11)
long double round( long double arg );
(seit C++11)
double round( Integral arg );
(seit C++11)
long lround( float arg );
(seit C++11)
long lround( double arg );
(seit C++11)
long lround( long double arg );
(seit C++11)
long lround( Integral arg );
(seit C++11)
long long llround( float arg );
(seit C++11)
long long llround( double arg );
(seit C++11)
long long llround( long double arg );
(seit C++11)
long long llround( Integral arg );
(seit C++11)
Berechnet nächste ganze Zahl zu arg. Nummer wird von Null weg in halbwegs Fällen abgerundet
Original:
Computes nearest integer to arg. Number is rounded away from zero in halfway cases
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[Bearbeiten] Parameter

arg -
Floating-Point-Wert
Original:
floating point value
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[Bearbeiten] Rückgabewert

Nächste ganze Zahl zu arg .
Original:
Nearest integer to arg.
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[[Image:
Rückgabewert
Original:
{{{2}}}
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|200x200px]]
Argument

[Bearbeiten] Siehe auch

nächste ganze Zahl nicht größer als der gegebene Wert
Original:
nearest integer not greater than the given value
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(Funktion) [edit]
nächste ganze Zahl nicht kleiner als der gegebene Wert
Original:
nearest integer not less than the given value
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(Funktion) [edit]
(C++11)
nächste Ganzzahl nicht betragsmäßig größer als der gegebene Wert
Original:
nearest integer not greater in magnitude than the given value
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(Funktion) [edit]