std::valarray

Defined in header <valarray>
template< class > class valarray;

Template:cpp is the class for representing and manipulating arrays of values. It supports element-wise mathematical operations and various forms of generalized subscript operators, slicing and indirect access. Template:cpp and helper classes are defined to be free of certain forms of aliasing, thus allowing operations on these classes to be optimized.

Member functions

(constructor)	constructs new valarray (public member function)
(destructor)	destructs the valarray (public member function)
operator=	replaces the contents of valarray (public member function)
operator[]	get/set valarray element, slice, or mask (public member function)
operator+operator-operator~operator!	applies a unary arithmetic operator to each element of the valarray (public member function)
operator*=operator/=operator%=operator+=operator-=operator^=operator&=operator|=operator<<=operator>>=	applies compound assignment operator to each element of the valarray (public member function)
swap	swaps with another valarray (public member function)
size	returns the size of valarray (public member function)
resize	changes the size of valarray (public member function)
sum	calculates the sum of all elements (public member function)
min	returns the smallest element (public member function)
max	returns the largest element (public member function)
shift	zero-filling shift the elements of the valarray (public member function)
cshift	circular shift of the elements of the valarray (public member function)
apply	applies a function to every element of a valarray (public member function)

Non-member functions

Template:cpp/numeric/valarray/dcl list begin2Template:cpp/numeric/valarray/dcl list end2

std::swap(std::valarray) (C++11)	specializes the Template:cpp/ltf algorithm (function template)
operator*operator/operator%operator+operator-operator^operator&operator|operator<<operator>>operator&&operator		applies binary operators to each element of two valarrays, or a valarray and a value (function template)
operator==operator!=operator<operator>operator<=operator>=	compares two valarrays or a valarray with a value (function template)
sin(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
cos(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
tan(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
asin(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
acos(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
atan(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
atan2(std::valarray)	applies the function Template:cpp to a valarray and a value (function template)
sinh(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
cosh(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
tanh(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
abs(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
exp(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
log(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
log10(std::valarray)	applies the function Template:cpp to each element of valarray (function template)
pow(std::valarray)	applies the function Template:cpp to two valarrays or a valarray and a value (function template)
sqrt(std::valarray)	applies the function Template:cpp to each element of valarray (function template)

Helper classes

slice	BLAS-like slice of a valarray: starting index, length, stride (class)
slice_array	proxy to a subset of a valarray after applying a slice (class template)
gslice	generalized slice of a valarray: starting index, set of lengths, set of strides (class)
gslice_array	proxy to a subset of a valarray after applying a gslice (class template)
mask_array	proxy to a subset of a valarray after applying a boolean mask operator[] (class template)
indirect_array	proxy to a subset of a valarray after applying indirect operator[] (class template)