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I have seen some 3rd party source code with comments in /*M ... M*/ style. But what 'M' stands for? (Perhaps it is used with some kind of version control, or code documentation system (like doxygen)?)
I saw it in many (if not all) source code files in opencv.
You may browse Itseez's opencv repository under GitHub by clicking here.
Oh. I forget to mention, the comment style seems to exist only in the head of the file, and it seems to declare the license.
Example:
/*M/////////////////////////////////////////////////////////////////////////////////////// // // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. // // By downloading, copying, installing or using the software you agree to this license. // If you do not agree to this license, do not download, install, // copy or use the software. // // // License Agreement // For Open Source Computer Vision Library [...] // //M*/
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Single-line comments start with two forward slashes ( // ). Any text between // and the end of the line is ignored by the compiler (will not be executed).
In computer programming, a comment is a programmer-readable explanation or annotation in the source code of a computer program. Comments are statements that are not executed by the compiler and interpreter.
There are two types of comments: single and multi-line. C-style comments or multi-line comments are used to comment on large blocks of text or code. C++ style comments or single-line comments are used to comment on single lines of text or code.
Note: Doesn't correlate to version control and even C++
This is a problem of cross-OS EOL-problem (Win|*Nix) and visualization of not-native EOL
^M (really such string) in CRLF in pure-CR world and Linux|Mac GUIs
Example for opengl.hpp (from your sample repo): first lines
/*M///////////////////////////////////////////////////////////////////////////////////////
//
are, with proper rendering
/*
///////////////////////////////////////////////////////////////////////////////////////
//
and all glithes are results of ugly configured core.CRLF in author's Git (or ignoring it at all)
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