Multiple ways to initialize arrays in c programming

Question

In how many ways we can declare an array in C programming? if there are many ways to declare an array in C, what are the best practices or best way among?

So far I have been initializing an array like this:

int myArray[SIZE] = {1,2,3,4....};

What are the other ways do the same?

Check this link: http://www.tutorialspoint.com/cprogramming/c_arrays.htm. BTW, it's the first google search result when searching for "C arrays" — Cristik, Apr 17 '15 at 09:42
I know that link. That's not what am looking for. I need to know how many ways are there to declare an array in C ? — Prabhakar Undurthi, Apr 17 '15 at 09:44
There is only one way to *declare* an array. The are a couple of ways of *initializing* it though. One way you show, the other is setting each element one by one. Or a loop or `memset` if you want to set all elements to the same value. — Some programmer dude, Apr 17 '15 at 09:44

score 2 · Accepted Answer · answered Apr 17 '15 at 10:56

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From C99, you can also use explicit indexes, called designators, in the initializer expression, which is sometimes very nice:

const int threetoone[] = { [2] = 1, [1] = 2, [0] = 3 };

The above is the same as

const int threetwoone[] = { 3, 2, 1 };

answered Apr 17 '15 at 10:56

unwind

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score 0 · Answer 2 · edited May 23 '17 at 11:58

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datatype arrayName[arraySize];

int x[10];
int x[]={1,2,3,4,5,6,7,8,9,0};

you can look at this question for more details on ways to initialize an array in C declaring-and-initializing-arrays-in-c

edited May 23 '17 at 11:58

Community

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answered Apr 17 '15 at 10:30

Himanshu Sourav

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Multiple ways to initialize arrays in c programming

2 Answers2