flags in c with enum

flags.c

#include <stdio.h>

typedef enum {
  kShareViewTypeNone = 0,
  kShareViewTypeFacebook = 1 << 0,
  kShareViewTypeTwitter = 1 << 1,
  kShareViewTypeAll = kShareViewTypeFacebook | kShareViewTypeTwitter
} ShareViewType;

int main (int argc, char const *argv[])
{
  ShareViewType shareViewType = kShareViewTypeFacebook;
  
  shareViewType |= kShareViewTypeTwitter;
  
  if (shareViewType & kShareViewTypeTwitter) {
    printf("twitterda paylas\n");
  }
  
  if (shareViewType & kShareViewTypeFacebook) {
    printf("fasbukte paylas\n");
  }
  
  return 0;
}