std::valarray<T>::resize

 

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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>>=
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swap (C++11) begin (C++11) end (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>=
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slice_array gslice_array indirect_array	slice gslice mask_array
Deduction guides(C++17)

 

void resize( std::size_t count, T value = T() );

Resizes the valarray to contain count elements and assigns value to each element.

This functions invalidates all pointers and references to elements in the array.

Parameters

count	-	new size of the container
value	-	the value to initialize the new elements with

Return value

(none)

Example

Run this code

#include <valarray>
#include <iostream>
int main()
{
    std::valarray<int> v{1,2,3};
    v.resize(10);
    for(int n: v) std::cout << n << ' ';
    std::cout << '\n';
}

Output:

0 0 0 0 0 0 0 0 0 0

See also

size	returns the size of valarray (public member function)