1 files changed, 10 insertions, 8 deletions
diff --git a/week_1/review_program/textbook.h b/week_1/review_program/textbook.h
index 8bb05d3..e546c14 100644
--- a/week_1/review_program/textbook.h
+++ b/week_1/review_program/textbook.h
@@ -13,17 +13,17 @@ namespace wk1_reviewProgram_zSzabatin {
 class Textbook {
 private:
   // Input values
-  uint64_t code_;
-  double single_copy_price_;
-  uint64_t number_on_hand_;
-  uint64_t prospective_enrollment_;
-  bool is_required_;
-  bool _is_used;
+  uint64_t code_;                   // Book code
+  double single_copy_price_;        // Price of a single copy
+  uint64_t number_on_hand_;         // Number of copies on hand
+  uint64_t prospective_enrollment_; // Number of students expected to enroll
+  bool is_required_;                // Is the book required?
+  bool _is_used;                    // Is the book used?
   // Fix 6 byte misalignment
   const char PADDING[6] = {0};
   // Evaluated values
-  uint64_t amount_to_order_ = {0};
-  double total_cost_ = {0};
+  uint64_t amount_to_order_ = {0}; // Number of copies to order
+  double total_cost_ = {0};        // Total cost of the order
 
 public:
   // Constructors
@@ -67,6 +67,8 @@ public:
   void SetIsUsed(bool);
 
   // Procedures
+  /// Precondition: Values have been set: code_, single_copy_price_,
+  /// number_on_hand_, prospective_enrollment_, is_required_, _is_used
   void EvaluateNeeds();
 
   // Printers