Initialization of variables sized arrays in C

A shorthand array notation in C for repeated values

Last Updated : 18 Sep, 2017

In C, when there are many repeated values, we can use a shorthand array notation to define array. Below program demonstrates same.

C

// C program to demonstrate working of shorthand
// array rotation.
#include <stdio.h>

int main()
{
    // This line is same as
    // int array[10] = {1, 1, 1, 1, 0, 0, 2, 2, 2, 2};
    int array[10] = {[0 ... 3]1, [6 ... 9]2};

    for (int i = 0; i < 10; i++)
        printf("%d ", array[i]);
    return 0;
}

Output:

1 1 1 1 0 0 2 2 2 2

Note that middle gap of 2 is automatically filled with 0.

Initialization of variables sized arrays in C

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Kaushik Annangi

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