memset function in c 2b 2b

1#include <cstring>
2memset(a, 0, sizeof(a));

1memset(a, 0, sizeof(a)) 
2memset(str, '#', sizeof(str)); 

1/* memset example */
2#include <stdio.h>
3#include <string.h>
4
5int main ()
6{
7  char str[] = "almost every programmer should know memset!";
8  memset (str,'-',6);
9  puts (str);
10  return 0;
11}
12
13Output: ------ every programmer should know memset!

1/* memset example */
2#include <stdio.h>
3#include <string.h>
4
5int main ()
6{
7  char str[] = "almost every programmer should know memset!";
8  memset (str,'-',6);
9  puts (str);
10  return 0;
11}

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