CODEWITHSUNDEEP
carraysstruct
dorothy
dorothy

Reputation: 1243

How to properly clear an array of struct

I have a question here . Now I wish to clear every element of the array without the use of setting the '\0' trick. I tried with memset, but it complains of 

 expected ‘void *’ but argument is of type ‘struct array’

here is my code:

    int i;  
for( i=0; i< sizeof(array)/sizeof(array[0]) ; i++){
    memset(array[i], 0, sizeof(array[i] ) );
}

how to properly clear it. thanks

Upvotes: 2

Views: 4123

Answers (2)

egur
egur

Reputation: 7960

Since you have a static array there's no need for a for loop:

memset(array, 0, sizeof(array)); // sizeof gives proper size of entire array if array is static.

Upvotes: 0

user694733
user694733

Reputation: 16043

memset expects a pointer (add &):

memset(&array[i], 0, sizeof(array[i] ) );

But if you are going to clear the entire array, you could replace the for-loop with:

memset(array, 0, sizeof(array));

As a side note: You should really avoid sizeof(array)/sizeof(array[0]). Define constant for element count. It is less error prone when you start passing arrays to functions.

Upvotes: 4

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