valarray resize() function in C++
The resize() function is defined in valarray header file. This function resizes the valarray to contain n elements and assigns value to each element.
Syntax:
void resize( size_t n, T value = T() );
Parameter: This method accepts two parameters:
- n: It represents the new size of valarray.
- value: It represents the value to initialize the new elements with.
Returns: This function doesn’t returns anything.
Below programs illustrate the above function:
Example 1:-
CPP
#include <bits/stdc++.h>
using namespace std;
int main()
{
valarray< int > varr = { 20, 40, 60, 80 };
varr.resize(2, 3);
cout << "The contents of valarray "
"after resizes are : " ;
for ( int & x : varr)
cout << x << " " ;
cout << endl;
return 0;
}
|
Output:
The contents of valarray after resizes are : 3 3
Example 2:-
CPP
#include <bits/stdc++.h>
using namespace std;
int main()
{
valarray< int > varr = { 20, 40, 60, 80 };
varr.resize(12, 5);
cout << "The contents of valarray "
"after resizes are : " ;
for ( int & x : varr)
cout << x << " " ;
cout << endl;
return 0;
}
|
Output:
The contents of valarray after resizes are : 5 5 5 5 5 5 5 5 5 5 5 5
Last Updated :
14 Jan, 2022
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