{"id":13730442,"url":"https://github.com/Dalzhim/ArticleEnumClass-v2","last_synced_at":"2025-05-08T03:30:30.428Z","repository":{"id":100978212,"uuid":"99776454","full_name":"Dalzhim/ArticleEnumClass-v2","owner":"Dalzhim","description":null,"archived":false,"fork":false,"pushed_at":"2017-08-11T13:54:50.000Z","size":14,"stargazers_count":20,"open_issues_count":0,"forks_count":3,"subscribers_count":4,"default_branch":"master","last_synced_at":"2024-11-14T21:38:01.430Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"https://dalzhim.github.io/2017/08/11/Improving-the-enum-class-bitmask/","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-2-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Dalzhim.png","metadata":{"files":{"readme":"Readme.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-08-09T07:08:53.000Z","updated_at":"2024-11-05T00:38:01.000Z","dependencies_parsed_at":null,"dependency_job_id":"3fa00a91-9283-4fa5-9081-24d98a4d04fb","html_url":"https://github.com/Dalzhim/ArticleEnumClass-v2","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Dalzhim%2FArticleEnumClass-v2","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Dalzhim%2FArticleEnumClass-v2/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Dalzhim%2FArticleEnumClass-v2/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Dalzhim%2FArticleEnumClass-v2/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Dalzhim","download_url":"https://codeload.github.com/Dalzhim/ArticleEnumClass-v2/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":252992688,"owners_count":21837168,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-08-03T02:01:14.945Z","updated_at":"2025-05-08T03:30:30.420Z","avatar_url":"https://github.com/Dalzhim.png","language":"C++","funding_links":[],"categories":["C++"],"sub_categories":[],"readme":"# Bitmask operators and typesafe comparisons for enum class\n*EnumClass.h* is a utility header that allows you to easily generate bitwise operators for your custom `enum class` type like so:\n```cpp\nenum class myEnum\n{\n\tenumerator1 = 0x1 \u003c\u003c 0,\n\tenumerator2 = 0x1 \u003c\u003c 1,\n\tenumerator3 = 0x1 \u003c\u003c 2\n};\n\nenableEnumClassBitmask(myEnum); // Activate bitmask operators\n```\nThis utility relies on two concepts: enumerators and masks. An enumerator’s purpose is to give a name to a specific bit when it is set. A mask, on the other hand, represents the state of every bit (and this way, of every enumerator), whether they are set or cleared. Comparing an enumerator to a mask using `operator==` or `operator!=` is a compiler error. [A complete blog post](https://dalzhim.github.io/2017/08/11/Improving-the-enum-class-bitmask/) explains why and how this is implemented.\n\nHere are some tables that summarize the return type of all of the operators :\n\n#### Binary bitwise operators\n\n | **`E, E`** | **`E`, `bitmask\u003cE\u003e`** | **`bitmask\u003cE\u003e`, `E`** | **`bitmask\u003cE\u003e`, `bitmask\u003cE\u003e`**\n | ---------- | --------------------- | --------------------- | ------------------------------\n**`operator\u0026`** | `E` | `E` | `E` | `bitmask\u003cE\u003e`\n**`operator\\|`** | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e`\n**`operator^`** | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e`\n**`operator\u0026=`** | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e`\n**`operator\\|=`** | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e`\n**`operator^=`** | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e`\n\n#### Unary bitwise operators\n\n | **`E`** | **`bitmask\u003cE\u003e`**\n | ------- | ----------------\n**`operator~`** | `bitmask\u003cE\u003e` | `bitmask\u003cE\u003e`\n\n#### Comparison operators\n\n | **`E, E`** | **`E`, `bitmask\u003cE\u003e`** | **`bitmask\u003cE\u003e`, `E`** | **`bitmask\u003cE\u003e`, `bitmask\u003cE\u003e`**\n | ---------- | --------------------- | --------------------- | ------------------------------\n**`operator==`** | `bool` | `static_assert` | `static_assert` | `bool`\n**`operator!=`** | `bool` | `static_assert` | `static_assert` | `bool`\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FDalzhim%2FArticleEnumClass-v2","html_url":"https://awesome.ecosyste.ms/projects/github.com%2FDalzhim%2FArticleEnumClass-v2","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FDalzhim%2FArticleEnumClass-v2/lists"}