(MOD) Refined Var, Array, CatlogMsg, CatlogSender, Status

This is the very first version that pass the compiler.  Though it has lots things were made for testing, such as commenting problematic source code to avoid irrelevant errors.  For test.c, everything is working fine.  Congrats!

Utils/include/utils.h

@@ -4,13 +4,17 @@
 # include <time.h>
 # include <string.h>
 # include <stdlib.h>
+# include <math.h>
 
 # include <Compound/common.h>
 # include <Compound/const.h>
 
 # define DATETIME_FORMAT "%a %d %b %X %Z %Y"
 
-int Utils_CalcDigits(long long n);
-int Utils_CalcDateTimeLiteralisationLength(char *buff);
+int Utils_CalcDigits(long long int n);
+
+int Utils_LiteraliseInteger(long long int n, char *buff);
+
+int Utils_DateTimeLiteralise(time_t t, char *buff);
 
 #endif  /* COMPOUND_UTILS_H */

Utils/src/utils.c

@@ -1,6 +1,6 @@
 #include <Compound/utils.h>
 
-int Utils_CalcDigits(long long n)
+int Utils_CalcDigits(long long int n)
 {
   if (n == 0) {
     return 1;
@@ -15,11 +15,34 @@ int Utils_CalcDigits(long long n)
   return i;
 }
 
-int Utils_CalcDateTimeLiteralisationLength(char *buff)
+int Utils_LiteraliseInteger(long long int n, char *buff)
 {
-  const time_t now = time(NULL);
+  /* Invalid buffer was presented. */
+  if (strlen(buff) != LITERALISATION_LENGTH_MAXIMUM) {
+    buff = NULL;
+    return 0;
+  }
   
-  (void)strftime(buff, 28, DATETIME_FORMAT, localtime(&now));
+  if (!n) {
+    buff = "0";
+    return 1;
+  }
   
-  return strlen(buff);
+  const int literalising_len = Utils_CalcDigits(n);
+  if (literalising_len >= LITERALISATION_LENGTH_MAXIMUM) {
+    buff = NULL;
+    return 0;
+  }
+  
+  char literalising[literalising_len];
+  for (register int i = 0; i < literalising_len; i++) {
+    literalising[i] = (n / (int)pow(10, i));
+  }
+  
+  return literalising_len;
+}
+
+int Utils_DateTimeLiteralise(time_t t, char *buff)
+{
+  return 0;
 }