std::valarray<T>::valarray

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Numerics library

Common mathematical functions

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Data-parallel types (SIMD)(C++26)

Floating-point environment(C++11)

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Numeric array (valarray)

Pseudo-random number generation

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(C++17)

(C++17)

(C++20)

(C++20)

Generic numeric operations

iota (C++11)
ranges::iota (C++23)
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reduce (C++17)
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C-style checked integer arithmetic

ckd_add (C++26)
ckd_sub (C++26)

ckd_mul (C++26)

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std::valarray

Member functions

valarray::valarray
valarray::~valarray
valarray::operator=
valarray::operator[]
valarray::swap
valarray::size
valarray::resize
valarray::sum
valarray::min
valarray::max
valarray::shift
valarray::cshift
valarray::apply

valarray::operator+valarray::operator-valarray::operator~valarray::operator!
valarray::operator+=valarray::operator-=valarray::operator*=valarray::operator/=valarray::operator%=valarray::operator&=valarray::operator\|=valarray::operator^=valarray::operator<<=valarray::operator>>=

Non-member functions

swap(std::valarray) (C++11)
begin(std::valarray) (C++11)
end(std::valarray) (C++11)
abs
exp
log
log10
pow
sqrt
sin
cos
tan
asin
acos
atan
atan2
sinh
cosh
tanh

operator*operator/operator%operator+operator-operator^operator&operator\|operator<<operator>>operator&&operator\|\|
operator==operator!=operator<operator>operator<=operator>=

Helper classes

slice_array
gslice_array
indirect_array

slice
gslice
mask_array

Deduction guides(C++17)

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valarray();	(1)
explicit valarray(std::size_t count);	(2)
valarray(const T& val,std::size_t count);	(3)
valarray(const T* vals,std::size_t count);	(4)
valarray(const valarray& other);	(5)
valarray( valarray&& other)noexcept;	(6)	(since C++11)
valarray(conststd::slice_array<T>& sa);	(7)
valarray(conststd::gslice_array<T>& gsa);	(8)
valarray(conststd::mask_array<T>& ma);	(9)
valarray(conststd::indirect_array<T>& ia);	(10)
valarray(std::initializer_list<T> il);	(11)	(since C++11)

Constructs new numeric array from various sources.

1) Default constructor. Constructs an empty numeric array.

2) Constructs a numeric array withcount copies ofvalue-initialized elements.

3) Constructs a numeric array withcount copies ofval.

4) Constructs a numeric array with copies ofcount values from an array pointed to byvals. If this array contains less thancount values, the behavior is undefined.

5) Copy constructor. Constructs the numeric array with the copy of the contents ofother.

6) Move constructor. Constructs the container with the contents ofother using move semantics.

7-10)Converting constructor. Convert the corresponding data structure to avalarray.

11) Constructs the numeric array with the contents of the initializer listil.

[edit]Parameters

count	-	the number of elements to construct
val	-	the value to initialize the elements with
vals	-	pointer to a C array to use as source to initialize the contents
other	-	another numeric array to use as source to initialize the contents
sa	-	slice array to initialize the elements with
gsa	-	generic slice array to initialize the elements with
ma	-	mask array to initialize the elements with
ia	-	indirect array to initialize the elements with
il	-	initializer list to initialize the elements with