(MOD) Removed Array_GetIdx and Array_SetIdx due to better approach was discovered.

(MOD) Defined 2 more statuses:  InvalidOperation, InvalidOperationBetweenAliveAndNonAlive.

(MOD) Defined 1 more macro:  assign.

Array/include/array.h

@@ -15,8 +15,8 @@ DEFSTATUS(InvalidArrayLength, 1, "Given length is invalid.", STATUS_ERROR, &Erro
 Status Array_Create(Array *inst, int len, size_t size);
 Status Array_CopyOf(Array *inst, Array *other);
 void   Array_Delete(Array *inst);
-Status Array_GetIdx(Array *inst, Var *store, int index);
+// Status Array_GetIdx(Array *inst, Var *store, int index);
-Status Array_SetIdx(Array *inst, Var *source, int index);
+// Status Array_SetIdx(Array *inst, Var *source, int index);
 bool   Array_Equals(Array *arr1, Array *arr2);
 
 Status ArrayUtils_Insert(Array *inst, Var *item, int index);

Array/src/array.c

@@ -91,7 +91,7 @@ Status Array_CopyOf(Array *inst, Array *other)
     /* Release the array inst. */
     free(inst->members);
     
-    return errstat;
+    return apply(errstat);
   }
   
   /* Assign rest of the struct members. */
@@ -115,9 +115,37 @@ void   Array_Delete(Array *inst)
   inst->len = 0;
 }
 
-Status Array_GetIdx(Array *inst, Var *store, int index);
+// Status Array_GetIdx(Array *inst, Var *store, int index)
+// {
+//   nonull(inst, apply(UnavailableInstance));
+//   nonull(store, apply(annot(UnavailableParameter,
+//     "Given store was unavailable.")));
+//   state(!store->alive, apply(annot(InstanceNotAlive,
+//     "Cannot store into a non-alive var.")));
+//   state(index >= inst->len || index < 0, apply(ArrayIndexOutOfBound));
+  
+//   // *store = inst->members[index];
+//   store->addr = inst->members[index].addr;
+//   store->size = inst->members[index].size;
+  
+//   return apply(NormalStatus);
+// }
 
-Status Array_SetIdx(Array *inst, Var *source, int index);
+// Status Array_SetIdx(Array *inst, Var *source, int index)
+// {
+//   nonull(inst, apply(UnavailableInstance));
+//   nonull(source, apply(annot(UnavailableParameter,
+//     "Given store was unavailable.")));
+//   state(!source->alive, apply(annot(InstanceNotAlive,
+//     "Cannot assign with a non-alive var.")));
+//   state(index >= inst->len || index < 0, apply(ArrayIndexOutOfBound));
+  
+//   // inst->members[index] = *source;
+//   inst->members[index].addr = source->addr;
+//   inst->members[index].size = source->size;
+  
+//   return apply(NormalStatus);
+// }
 
 bool   Array_Equals(Array *arr1, Array *arr2);
 

Status/include/status.h

@@ -165,14 +165,6 @@ DEFSTATUS(UnavailableObject, 1,
   "An unavailable object was presented.",
   STATUS_ERROR, &ErrorStatus);
 
-DEFSTATUS(InstanceStillAlive, 1,
-  "Given instance was yet alive.",
-  STATUS_ERROR, &ErrorStatus);
-
-DEFSTATUS(InstanceNotAlive, 1,
-  "Given instance for reallocation was not alive.",
-  STATUS_ERROR, &ErrorStatus);
-
 DEFSTATUS(InvalidParameter, 1,
   "An invalid parameter was presented.",
   STATUS_ERROR, &InvalidObject);
@@ -189,10 +181,26 @@ DEFSTATUS(IntegerOverFlow, 1,
   "An integer had overflowed.",
   STATUS_ERROR, &ArithmeticError);
 
+DEFSTATUS(InvalidOperation, 1,
+  "An invalid operation was detected.",
+  STATUS_ERROR, &ErrorStatus);
+
 DEFSTATUS(RuntimeError, 1,
   "A runtime error occurred.",
   STATUS_ERROR, &ErrorStatus);
 
+DEFSTATUS(InstanceStillAlive, 1,
+  "Given instance was yet alive.",
+  STATUS_ERROR, &RuntimeError);
+
+DEFSTATUS(InstanceNotAlive, 1,
+  "Given instance for reallocation was not alive.",
+  STATUS_ERROR, &RuntimeError);
+
+DEFSTATUS(InvalidOperationBetweenAliveAndNonAlive, 1,
+  "Given two instances were incompatible with each other for any operation.",
+  STATUS_ERROR, &InvalidOperation);
+
 DEFSTATUS(InstanceCreatingFailure, 1,
   "Cannot create the instance.",
   STATUS_ERROR, &RuntimeError);

common.h

@@ -6,6 +6,13 @@
 
 # define EMPTY  {0}
 
+/*
+   PLEASE BE NOTICE:
+   MAGIC MACRO CANNOT USE "APPLY" AT RETURNING.
+   IT SHOULD ALWAYS RETURN THE LOCATION INDICATOR WHERE
+   IT CAME FROM.
+*/
+
 /* Get the literal. */
 # define nameof(obj)  #obj
 
@@ -37,10 +44,10 @@
 # define notok(s, b)  { Status _ = s;  if (!StatusUtils_IsOkay(_))  b }
 
 /* Return e when passing a failing e commented with c. */
-# define fails(e, c)  { notok(e, return apply(annot(_, c));) }
+# define fails(e, c)  { notok(e, return annot(_, c);) }
 
 /* Return e when passing a failing e. */
-# define fail(e)  { notok(e, return apply(_);) }
+# define fail(e)  { notok(e, return _;) }
 
 /* Return v when passing a failing e. */
 # define vfail(e, v)  { notok(e, return v;) }
@@ -64,6 +71,10 @@
 /* Cast Var "var" into builtin type in C specified with "type". */
 # define cast(var, type)  (*(type *)var.addr)
 
+/* Assign var with value under type "type".
+   REQUIRE BOTH VAR AND VALUE TO BE ALIVE. */
+# define assign(var, value, type)  { cast(var, type) = cast(value, type); }
+
 // # define lambda(param, body, capfmt, ...)  {\
 //   /* Duplicate everything from cap. */\
 //   va_list ptr;\

test.c

@@ -1,3 +1,4 @@
+#include "Status/include/status.h"
 #include <Compound/array.h>
 #include <Compound/catlog.h>
 #include <Compound/common.h>
@@ -20,6 +21,52 @@ __attribute__((destructor))
 void __DESTRUCT__() {}
 
 Status Main(void)
+{
+  Array arr;
+  fail(Array_Create(&arr, 8, sizeof(int)));
+  
+  for (register int i = 0; i < arr.len; i++) {
+    Var current;
+
+    // fails(Var_Create(&current, arr.members[0].size),
+    //   "Failed to create Var current.");
+
+    state(!current.alive || !arr.members[i].alive,
+      apply(InvalidOperationBetweenAliveAndNonAlive));
+    assign(current, arr.members[i], int);
+
+    char buff[LITERALISATION_LENGTH_MAXIMUM] = EMPTY;
+    unsure(Var_Literalise(&current, buff), !_.value, {
+      return annot(_, "Failed to literalise Var current.");
+    })
+    
+    (void)printf("%s\n", buff);
+    
+    // Var_Delete(&current);
+  }
+  
+  cat("Get:");
+  Var get = EMPTY;
+  
+  fails(Var_Create(&get, arr.members[4].size), "Failed to create Var \"get\".");
+
+  state(!get.alive || !arr.members[4].alive,
+    apply(InvalidOperationBetweenAliveAndNonAlive));
+  assign(get, arr.members[4], int);
+  
+  char buff[LITERALISATION_LENGTH_MAXIMUM] = EMPTY;
+  unsure(Var_Literalise(&get, buff), !_.value, {
+    return annot(_, "Failed to literalise Var current.");
+  })
+  
+  Var_Delete(&get);
+  
+  // Array_Delete(&arr);
+  
+  return apply(NormalStatus);
+}
+
+Status MainArrayCreateAndDeleteWithTraditionalMemberAccessing(void)
 {
   // const int len = 8;