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How to Find an Element in a C Array?

Patricia Arquette
Patricia ArquetteOriginal
2024-11-11 10:46:031037browse

How to Find an Element in a C   Array?

How to Ascertain Element Presence in a C Array

In Java, searching an array for a specific element is straightforward using the "equals" method. However, in C , the concept of "null" differs, prompting the need for an alternative approach.

C Solution: std::find

C provides the std::find algorithm, which searches a range of elements for a specified target value. The returned iterator points to either the target if it exists or to the end iterator if it does not.

Code Example:

#include <iterator>
#include <algorithm>

int main() {
    Foo array[10];
    // Initialize the array here

    Foo *foo = std::find(std::begin(array), std::end(array), someObject);

    // Check if the element was found
    if (foo != std::end(array)) {
        std::cout << "Found at position " << std::distance(array, foo) << std::endl;
    } else {
        std::cout << "Not found" << std::endl;
    }

    return 0;
}

This implementation effectively searches the array for the presence of the specified element and outputs the result accordingly.

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