Google C++ Style Guide
https://google.github.io/styleguide/cppguide.htmlComments should be as readable as narrative text, with proper capitalization and punctuation. In many cases, complete sentences are more readable than sentence fragments. Shorter comments, such as comments at the end of a line of code, can sometimes be less formal, but you should be consistent with your style.
Comments - cppreference.com
https://en.cppreference.com/w/cpp/comment23.06.2021 · C-style C-style comments are usually used to comment large blocks of text, however, they can be used to comment single lines. To insert a C-style comment, simply surround text with /* and */; this will cause the contents of the comment to be ignored by the compiler.
Comments in C/C++ - GeeksforGeeks
https://www.geeksforgeeks.org/comments-in-c-c23.08.2018 · Multi-line comment Represented as /* any_text */ start with forward slash and asterisk (/*) and end with asterisk and forward slash (*/). It is used to denote multi-line comment. It can apply comment to more than a single line. It is referred to as C-Style comment as it was introduced in C programming. /*Comment starts continues continues . . .