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enum-flags

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Bit flags for C++ scoped enums

C++ 11 added a new type of enums — enum classes. These are strongly typed enumerations, they do not cast implicitly to or from the underlying integer type. They also do not leak enumeration values to enclosing scope (thus the names of this values do not clash and you no longer need to prefix/suffix them with something to disambiguate).

The only drawback to type safety is you cannot treat variables of enum class types as sets of flags. That is because enum classes do not cast to integers and there are no bitwise operators overloads defined for them.

This library brings a flags class template which provides bit flags for scoped enums.

Install

Using Conan

Add required remote:

$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:

[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source

Download source code and run from inside the project root:

$ b2 install --prefix=/path/to/installation/prefix

Usage

#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}

More info can be found in the docs.

Maintainer

Dmitry Arkhipov grisumbras@gmail.com

Contributing

Patches welcome!

License

MIT (C) Dmitry Arkhipov.

About

Bit flags for C++11 scoped enums

Topics

bit-flagbit-maskc-plus-plusscoped-enum

Resources

Readme
MIT license
Activity

Stars

121 stars

Watchers

11 watching

Forks

20 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
enum-flags
DownloadBuild StatusLicense
Bit flags for C++ scoped enums
C++ 11 added a new type of enums — enum classes.
These are strongly typed enumerations, they do not cast implicitly to or from
the underlying integer type. They also do not leak enumeration values to
enclosing scope (thus the names of this values do not clash and you no longer
need to prefix/suffix them with something to disambiguate).
The only drawback to type safety is you cannot treat variables of enum class
types as sets of flags. That is because enum classes do not cast to integers
and there are no bitwise operators overloads defined for them.
This library brings a flags class template which provides bit flags for
scoped enums.
Install
Using Conan
Add required remote:
$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:
[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source
Download source code and run from inside the project root:
$ b2 install --prefix=/path/to/installation/prefix
Usage
#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}
More info can be found in the docs.
Maintainer
Dmitry Arkhipov grisumbras@gmail.com
Contributing
Patches welcome!
License
MIT (C) Dmitry Arkhipov.
About
Bit flags for C++11 scoped enums
Topics
bit-flagbit-maskc-plus-plusscoped-enum
Resources
Readme
MIT license
Activity
Stars
121 stars
Watchers
11 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
enum-flags
DownloadBuild StatusLicense
Bit flags for C++ scoped enums
C++ 11 added a new type of enums — enum classes.
These are strongly typed enumerations, they do not cast implicitly to or from
the underlying integer type. They also do not leak enumeration values to
enclosing scope (thus the names of this values do not clash and you no longer
need to prefix/suffix them with something to disambiguate).
The only drawback to type safety is you cannot treat variables of enum class
types as sets of flags. That is because enum classes do not cast to integers
and there are no bitwise operators overloads defined for them.
This library brings a flags class template which provides bit flags for
scoped enums.
Install
Using Conan
Add required remote:
$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:
[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source
Download source code and run from inside the project root:
$ b2 install --prefix=/path/to/installation/prefix
Usage
#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}
More info can be found in the docs.
Maintainer
Dmitry Arkhipov grisumbras@gmail.com
Contributing
Patches welcome!
License
MIT (C) Dmitry Arkhipov.
About
Bit flags for C++11 scoped enums
Topics
bit-flagbit-maskc-plus-plusscoped-enum
Resources
Readme
MIT license
Activity
Stars
121 stars
Watchers
11 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
enum-flags
DownloadBuild StatusLicense
Bit flags for C++ scoped enums
C++ 11 added a new type of enums — enum classes.
These are strongly typed enumerations, they do not cast implicitly to or from
the underlying integer type. They also do not leak enumeration values to
enclosing scope (thus the names of this values do not clash and you no longer
need to prefix/suffix them with something to disambiguate).
The only drawback to type safety is you cannot treat variables of enum class
types as sets of flags. That is because enum classes do not cast to integers
and there are no bitwise operators overloads defined for them.
This library brings a flags class template which provides bit flags for
scoped enums.
Install
Using Conan
Add required remote:
$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:
[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source
Download source code and run from inside the project root:
$ b2 install --prefix=/path/to/installation/prefix
Usage
#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}
More info can be found in the docs.
Maintainer
Dmitry Arkhipov grisumbras@gmail.com
Contributing
Patches welcome!
License
MIT (C) Dmitry Arkhipov.
About
Bit flags for C++11 scoped enums
Topics
bit-flagbit-maskc-plus-plusscoped-enum
Resources
Readme
MIT license
Activity
Stars
121 stars
Watchers
11 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
enum-flags
DownloadBuild StatusLicense
Bit flags for C++ scoped enums
C++ 11 added a new type of enums — enum classes.
These are strongly typed enumerations, they do not cast implicitly to or from
the underlying integer type. They also do not leak enumeration values to
enclosing scope (thus the names of this values do not clash and you no longer
need to prefix/suffix them with something to disambiguate).
The only drawback to type safety is you cannot treat variables of enum class
types as sets of flags. That is because enum classes do not cast to integers
and there are no bitwise operators overloads defined for them.
This library brings a flags class template which provides bit flags for
scoped enums.
Install
Using Conan
Add required remote:
$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:
[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source
Download source code and run from inside the project root:
$ b2 install --prefix=/path/to/installation/prefix
Usage
#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}
More info can be found in the docs.
Maintainer
Dmitry Arkhipov grisumbras@gmail.com
Contributing
Patches welcome!
License
MIT (C) Dmitry Arkhipov.
About
Bit flags for C++11 scoped enums
Topics
bit-flagbit-maskc-plus-plusscoped-enum
Resources
Readme
MIT license
Activity
Stars
121 stars
Watchers
11 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
enum-flags
DownloadBuild StatusLicense
Bit flags for C++ scoped enums
C++ 11 added a new type of enums — enum classes.
These are strongly typed enumerations, they do not cast implicitly to or from
the underlying integer type. They also do not leak enumeration values to
enclosing scope (thus the names of this values do not clash and you no longer
need to prefix/suffix them with something to disambiguate).
The only drawback to type safety is you cannot treat variables of enum class
types as sets of flags. That is because enum classes do not cast to integers
and there are no bitwise operators overloads defined for them.
This library brings a flags class template which provides bit flags for
scoped enums.
Install
Using Conan
Add required remote:
$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:
[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source
Download source code and run from inside the project root:
$ b2 install --prefix=/path/to/installation/prefix
Usage
#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}
More info can be found in the docs.
Maintainer
Dmitry Arkhipov grisumbras@gmail.com
Contributing
Patches welcome!
License
MIT (C) Dmitry Arkhipov.
About
Bit flags for C++11 scoped enums
Topics
bit-flagbit-maskc-plus-plusscoped-enum
Resources
Readme
MIT license
Activity
Stars
121 stars
Watchers
11 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
enum-flags
DownloadBuild StatusLicense
Bit flags for C++ scoped enums
C++ 11 added a new type of enums — enum classes.
These are strongly typed enumerations, they do not cast implicitly to or from
the underlying integer type. They also do not leak enumeration values to
enclosing scope (thus the names of this values do not clash and you no longer
need to prefix/suffix them with something to disambiguate).
The only drawback to type safety is you cannot treat variables of enum class
types as sets of flags. That is because enum classes do not cast to integers
and there are no bitwise operators overloads defined for them.
This library brings a flags class template which provides bit flags for
scoped enums.
Install
Using Conan
Add required remote:
$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:
[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source
Download source code and run from inside the project root:
$ b2 install --prefix=/path/to/installation/prefix
Usage
#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}
More info can be found in the docs.
Maintainer
Dmitry Arkhipov grisumbras@gmail.com
Contributing
Patches welcome!
License
MIT (C) Dmitry Arkhipov.
About
Bit flags for C++11 scoped enums
Topics
bit-flagbit-maskc-plus-plusscoped-enum
Resources
Readme
MIT license
Activity
Stars
121 stars
Watchers
11 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
enum-flags
DownloadBuild StatusLicense
Bit flags for C++ scoped enums
C++ 11 added a new type of enums — enum classes.
These are strongly typed enumerations, they do not cast implicitly to or from
the underlying integer type. They also do not leak enumeration values to
enclosing scope (thus the names of this values do not clash and you no longer
need to prefix/suffix them with something to disambiguate).
The only drawback to type safety is you cannot treat variables of enum class
types as sets of flags. That is because enum classes do not cast to integers
and there are no bitwise operators overloads defined for them.
This library brings a flags class template which provides bit flags for
scoped enums.
Install
Using Conan
Add required remote:
$ conan remote add grisumbras https://api.bintray.com/conan/grisumbras/conan

Use inside conanfile.txt:
[requires]
enum-flags/[>=0.1]@grisumbras/testing

Installing from source
Download source code and run from inside the project root:
$ b2 install --prefix=/path/to/installation/prefix
Usage
#include<flags/flags.hpp>enumclassMyEnum { Value1 = 1 << 0, Value2 = 1 << 1 };
ALLOW_FLAGS_FOR_ENUM(MyEnum)
intmain() {
auto mask1 = MyEnum::Value1 | MyEnum::Value2; // set flags Value1 and Value 2if (mask1 & MyEnum::Value2) { // if Value2 flag is set/* ... */
}
}
More info can be found in the docs.
Maintainer
Dmitry Arkhipov grisumbras@gmail.com
Contributing
Patches welcome!
License
MIT (C) Dmitry Arkhipov.
About
Bit flags for C++11 scoped enums
Topics
bit-flagbit-maskc-plus-plusscoped-enum
Resources
Readme
MIT license
Activity
Stars
121 stars
Watchers
11 watching
Forks
20 forks
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