std::fill
From Cppreference
| Defined in header
<algorithm> | ||
| template< class ForwardIterator, class T >
void fill( ForwardIterator first, ForwardIterator last, const T& value ); | ||
Assigns the given value value to the elements in the range, defined by [first, last).
Contents |
Parameters
| first, last | - | the range of elements to modify |
| value | - | the value to be assigned |
Return value
(none)
Complexity
linear in the distance between first and last
Equivalent function
template< class ForwardIterator, class T > void fill(ForwardIterator first, ForwardIterator last, const T& value) { for (; first != last; ++first) { *first = value; } }
Example
The following code uses fill() to set all of the elements of a vector of integers to -1:
#include <algorithm> #include <vector> #include <iostream> int main() { int data[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 } std::vector<int> v1(data, data+10); std::fill(v1.begin(), v1.end(), -1); for (vector<int>::iterator it = v1.begin(); it != v1.end(); ++it) { std::cout << *it << " "; } return 0; }
Output:
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1
See also
| assigns a value to some number of elements (function template) | |
| saves the result of a function in a range (function template) | |
| applies a function to a range of elements (function template) | |
