mapbox/variant

View on GitHub

C++11/C++14 Variant

Stars: 384
Forks: 96
Open beginner issues: 0
Indexed issues: 25

Dominant language: C++
License: BSD-3-Clause
Last GitHub push: Jun 29, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

25 issues indexed so far

Fails to build with GCC 15 Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mapbox/variant#186 · Opened Sep 5, 2025
error: size of array ‘altStackMem’ is not an integral constant-expression Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mapbox/variant#183 · 1 comment · Opened Aug 14, 2022
[Usage] using inside cmake project Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

mapbox/variant#174 · 1 comment · Opened Oct 10, 2019
Remove VARIANT_INLINE Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mapbox/variant#166 · 4 comments · Opened Jul 12, 2018
Possible data corruption when assigning variant to itself Open

mapbox/variant#164 · 4 comments · 1 reaction · 1 assignee · Opened Jan 11, 2018
Fixing clang-tidy errors/warnings Open

mapbox/variant#158 · 9 comments · 1 assignee · Opened Aug 18, 2017
Add API.md documenting all available methods Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mapbox/variant#157 · 1 comment · Opened Jul 24, 2017
Visual Studio debugger support Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

mapbox/variant#155 · Opened Jul 2, 2017
Bug leads to crash program when using .set<T>() and then apply_visitor() Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

mapbox/variant#152 · 1 comment · Opened Jun 2, 2017
std::is_copy_constructible::value is always true for variant<Ts...> Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

mapbox/variant#151 · Opened May 26, 2017
Tests fail with gcc 7.0.1 due to new aliasing warnings Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mapbox/variant#148 · 6 comments · Opened May 3, 2017
Wrong AccessModifierOffset Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mapbox/variant#145 · Opened Apr 15, 2017
Coverage report on travis doesn't work Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mapbox/variant#136 · 1 comment · Opened Jan 6, 2017
Hashable should take type index into account Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mapbox/variant#131 · 4 comments · Opened Nov 29, 2016
Checks Concepts - Error Messages Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mapbox/variant#127 · Opened Nov 18, 2016
non-static variant::visit Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mapbox/variant#118 · 6 comments · Opened Sep 12, 2016
Promote to mapbox namespace (remove "util") Open

interface change

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mapbox/variant#104 · 6 reactions · Opened May 10, 2016
Base recursive_wrapper implementation on std::unique_ptr Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mapbox/variant#89 · 17 comments · Opened Feb 1, 2016
Noexcept on operator=() is wrong Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mapbox/variant#88 · 3 comments · Opened Feb 1, 2016
Access via type Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

mapbox/variant#84 · 10 comments · Opened Jan 29, 2016
Unify special cases for reference/recursive_wrapper Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mapbox/variant#83 · Opened Jan 29, 2016
Implement swap. Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mapbox/variant#80 · 1 comment · 1 reaction · Opened Jan 29, 2016
Remove `get_type_index` in favour of more standard `which()` Open

enhancement interface change

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mapbox/variant#73 · 6 comments · Opened Jan 27, 2016
Noexcept on constructor Open

interface change

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mapbox/variant#61 · 8 comments · Opened Jan 14, 2016
sizeof(variant) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mapbox/variant#19 · 11 comments · Opened Jun 6, 2014

mapbox/variant

Get new issues in your inbox