<div class="t-tr-text">C + +: conceitos<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">C++ concepts:</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div> RandomNumberDistribution
Da cppreference.com
|
|
This page has been machine-translated from the English version of the wiki using Google Translate.
The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here. |
A
i).
RandomNumberDistribution é um objeto função retornando números aleatórios de acordo com um função densidade de probabilidade p(x) ou um distribuição de probabilidade discreta P(xi).
Original:
A
i).
RandomNumberDistribution is a function object returning random numbers according to a função densidade de probabilidade p(x) or a distribuição de probabilidade discreta P(xi).
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[editar] Requisitos
| This section is incomplete |
-
Dé uma classe que satisfaça os requisitosRandomNumberDistribution. Ele deve também satisfazer aCopyConstructiblee requisitosCopyAssignable.Original:Dis a class meeting theRandomNumberDistributionrequirements. It shall also satisfy theCopyConstructibleandCopyAssignablerequirements.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. -
Té oresult_typeassociado.Original:Tis the associatedresult_type.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. -
Pé oparam_typeassociado. Ele deve satisfazer osCopyConstructible,CopyAssignable, requisitos eEqualityComparable.Original:Pis the associatedparam_type. It shall satisfy theCopyConstructible,CopyAssignable, andEqualityComparablerequirements.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. -
dé um objeto deDex,ysão objetos potencialmente const deD.Original:dis an object ofDandx,yare potentially const objects ofD.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. -
pé um valor constante de possivelmenteP.Original:pis a possibly constant value ofP.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. -
g,g1,g2são lvalues atender o conceitoUniformRandomNumberGenerator.Original:The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. -
osé um lvalue de std::basic_ostream.Original:osis an lvalue of std::basic_ostream.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. -
isé um lvalue de std::basic_istream.Original:isis an lvalue of std::basic_istream.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
| Expression | Type | Notes | Complexity |
|---|---|---|---|
D::result_type |
T |
An arithmetic type | compile-time |
D::param_type |
P |
compile-time | |
D() |
constant | ||
D(p) |
Same as p's construction
| ||
d.reset() |
void |
Resets the internal state of the distribution object. After a call to this function, the next call to operator() on the distribution object will not be dependent on previous calls to operator(). |
constant |
x.param() |
P |
No worse than D(p)
| |
d.param(p) |
void |
No worse than D(p)
| |
d(g) |
T |
d(g, d.param()) |
Same as d(g, d.param())
|
d(g,p) |
T |
When called with the same g and p parameter it returns a sequence of numbers distributed according to p(x;p) or P(xi; p) |
Amortized constant number of incovations of g
|
x.min() |
T |
The greatest lower bound returned by operator() |
constant |
x.max() |
T |
The least upper bound returned by operator() |
constant |
x == y |
bool |
constant | |
y != y |
bool |
!(x == y) |
constant |
os << x |
Reference to the type of os |
Writes a textual representation of the distribution parameters and internal state to os as textual representation. The formatting flags and fill character of os are unchanged. |
|
is >> d |
Reference to the type of is |
Restores the distribution parameters and internal state with data read from is. The formatting flags of is are unchanged. The data must have been written using a stream with the same locale, CharT and Traits template parameters, otherwise the behavior is undefined. If bad input is encountered, is.setstate(std::ios::failbit) is called, which may throw std::ios_base::failure. d is unchanged in that case. |