C Baginterface And Magicchangebag Implementation

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 04e912cff54b · 14 Oct 2026Report an issue or request a re-scan

• PublisherECNU-ICALK GitHub organizationOwner of the repository this skill is read from
• Source folderECNU-ICALK/AutoSkill/SkillBank/ConvSkill/english_gpt3.5_8_GLM4.7/c-baginterface-and-magicchangebag-implementationThe exact folder we audited
• LicenceNot declaredAs the repository states it
• Commit pinned for this verdict04e912cff54bA new audit runs when the source changes
• Repository statusNot archivedLast push 157 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Implements a specific C++ data structure assignment involving an abstract Bag interface, a standard PlainBag, and a MagicChangeBag with unique insertion/removal logic.

---
id: "b9e7fd79-d1dd-495c-91dc-262fa1bceb13"
name: "C++ BagInterface and MagicChangeBag Implementation"
description: "Implements a specific C++ data structure assignment involving an abstract Bag interface, a standard PlainBag, and a MagicChangeBag with unique insertion/removal logic."
version: "0.1.0"
tags:
  - "C++"
  - "Data Structure"
  - "Bag"
  - "Template"
  - "Assignment"
triggers:
  - "implement BagInterface PlainBag MagicChangeBag"
  - "C++ bag assignment magic disappear"
  - "design abstract Bag class with magic change bag"
  - "MagicChangeBag insert disappear remove appear"
---

# C++ BagInterface and MagicChangeBag Implementation

Implements a specific C++ data structure assignment involving an abstract Bag interface, a standard PlainBag, and a MagicChangeBag with unique insertion/removal logic.

## Prompt

# Role & Objective
You are a C++ developer responsible for implementing a specific data structure assignment involving a Bag container.

# Operational Rules & Constraints
1. **Language**: Use C++.
2. **Templates**: Use `template<typename T>` for all classes to support any data type.
3. **Class Structure**:
   - Create an abstract base class named `BagInterface`.
   - Create a derived class named `PlainBag`.
   - Create a derived class named `MagicChangeBag`.
4. **Interface Methods**: `BagInterface` must define the following pure virtual methods:
   - `insert(T item)`: Insert an item.
   - `contains(T item)`: Check if item is present (returns bool).
   - `count(T item)`: Count copies of item (returns int).
   - `remove(T item)`: Remove an item.
   - `clear()`: Empty the bag.
   - `size()`: Get item count (returns int).
   - `is_empty()`: Check if empty (returns bool).
   - `is_full()`: Check if full (returns bool).
5. **Capacity Constraint**: The bag capacity is fixed at 20.
6. **PlainBag Logic**:
   - Use a `vector<T>` for storage.
   - Implement standard container behavior for all methods.
7. **MagicChangeBag Logic**:
   - Use a `vector<T>` for storage.
   - **Insert Behavior**: When an item is inserted, it must "magically disappear" (the insert operation effectively does nothing, making the bag appear empty).
   - **Remove Behavior**: When `remove(item)` is called, clear the bag and then add the `item` being removed back into the bag (so the bag contains only that specific item).
   - **Query Behavior**: `contains` and `count` should reflect the state where the bag appears empty after inserts.

# Output
Generate the C++ code implementing the classes according to the rules above.

## Triggers

- implement BagInterface PlainBag MagicChangeBag
- C++ bag assignment magic disappear
- design abstract Bag class with magic change bag
- MagicChangeBag insert disappear remove appear

Excerpt, first 2,741 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

git clone https://github.com/ECNU-ICALK/AutoSkill
git -C AutoSkill checkout 04e912cff54b

Works in

1. 2026-10-14
   ✓SAFE B 89 / 100

   first audit · source 04e912cff54b

Questions about C Baginterface And Magicchangebag Implementation

• github.com/ECNU-ICALK/AutoSkill/tree/main/SkillBank/ConvSkill/en — the audited source at commit 04e912cff54b and every finding aboveObserved · 14 Oct 2026

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