C / C++ / MFC

void print(int *a)

void print(int a[])

typedef struct {
    unsigned bit : 1; // single bit
} BIT;

static BIT bit = { 0 };
or  
static BIT bit = {.bit = 0}; // C11 and above standard

typedef struct __attribute__((__packed__, aligned(1))) {
    unsigned Clk : 1; // clk bit
    unsigned Bit : 1; // Data bit
    unsigned CS : 1;  // Chip select
    unsigned _reserved: 5; // 5 unused bits
} MYREGISTER;

manoharbalu wrote:

Is there a way to write to a file which cannot be viewed directly by the user from disk whereas it could be read by the program.

manoharbalu wrote:

Is there a way to write to a file which cannot be viewed directly by the user

manoharbalu wrote:

Kindly suggest me if writing a full structure is wrong

FILE * binfile = fopen("somefilename.bin", "wb"); //Open writable bin file

Tarun Jha wrote:

how do we use char *function(), and does it returns character...

int input(char *buf, int buf_size)
{
    char local_buf[100] = "";
    // Use fgets here instead of gets to avoid buffer overruns
    fgets(local_buf, sizeof(local_buf), stdin);
    int len = strlen(local_buf);
    if (buf_size <= len)
        return -1;
    strcpy(buf, local_buf);
    return len;
}

char *input()
{
    char local_buf[100] = "";
    // Use fgets here instead of gets to avoid buffer overruns
    fgets(local_buf, sizeof(local_buf), stdin);
    return strdup(local_buf);
}

// Usage
char *input_str;
input_str = input();
// Use string here
// ...
// Finally free it
free(input_str);

int StringInput (char* name, int namemax)
{ 
   int c;
   int namelen = 0;  // initialize array position index to zero
   if (name && namemax > 1) {  // Lets be safe and check pointer valid and space > 1
      do {
         c = getc(stdin);  // fetch the integer keyboard read value .. EOF safe
         name[namelen++] = (char) c;  // convert the integer to a char and place in array .. increment position
      } while (c !=EOF && c != '\n' && namelen < namemax-1);  // repeat until EOF or new line or hit max length-1 (need space for '\0')
      temp.name[namelen-1] = '\0';  // Make C null terminated string (overwrite last EOF or '\n')
   }
   return(namelen); // return the name length
}

/** HOW to USE *//
int main(void)
{
   char name[100];
   int len = StringInput(&name[0], sizeof(name));
   // OR if you don't need length just
   StringInput(&name[0], sizeof(name));
}

int StringInput (const char* name, const int namemax, const FILE* source)