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C++ algorithm fill() function

❮ Algorithm Functions


Example

Fill a vector with a value:

vector<int> numbers(6);
fill(numbers.begin(), numbers.end(), 5);
for (int number : numbers) {
  cout << number << " ";
}
Try it Yourself »

Definition and Usage

The fill() function fills a data range with a specified value.

The range of data is specified by iterators.

Syntax

fill(iterator start, iterator end, <type> value);

<type> refers to the type of the data that the range contains.

Parameter Values

Parameter Description
start Required. An iterator pointing to the start of the data range.
end Required. An iterator pointing to the end of the data range. Elements up to this position will be included, but the element at this position will not be.
value Required. The value to write into every element in the data range.

Related Pages

Read more about data structures in our Data Structures Tutorial.

Read more about iterators in our Iterators Tutorial.

Read more about algorithms in our Algorithms Tutorial.


❮ Algorithm Functions

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