It looks like ligatures and/or kerning adjust the second colon up to align with the first letter of the following word, and adjust the first colon down to align with the closing > character.
Consecutive ::s should probably stay aligned with each other when possible!
See this image:
In C++, this form of qualified identifier is commonly used with templated classes:
It looks like ligatures and/or kerning adjust the second colon up to align with the first letter of the following word, and adjust the first colon down to align with the closing
>
character.Consecutive
::
s should probably stay aligned with each other when possible!