Question

How to initialize array in struct with one value at specific index C

Answer 1

#include <stdio.h>

typedef struct {
    int arr[7];
    char ch;
} ST;

int main(void) {

    static const ST s = { { [3] = 8 }, 'z'};

    for (int i = 0; i < 7; i++)
        printf("arr[%d] = %d\n", i, s.arr[i]);

    printf("s.ch = %c\n", s.ch);

    return 0;
}




/*
run:

arr[0] = 0
arr[1] = 0
arr[2] = 0
arr[3] = 8
arr[4] = 0
arr[5] = 0
arr[6] = 0
s.ch = z

*/

 

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