Question

How to clear char array in C

Answer 1

#include <string.h>
#include <stdio.h>

void printCharArray(char *p, size_t len) {
    printf("arr: ");
    for (size_t i = 0; i < len; ++i) {
        printf("%c ", p[i]);
    }
    printf("\n");
}

int main(){
    char arr[] = {'a', 'b', 'c', 'd', 'e', 'f', 'g'};

    printCharArray(arr, sizeof arr);

    memset(arr, 0, sizeof arr);

    printCharArray(arr, sizeof arr);

    return 0;
}




/*
run:

arr: a b c d e f g
arr:

*/

 

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