File System - Resolve (Path Resolving)

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The resolve function is a algorithm on a file system that return a path from another path.

It is equivalent to the execution of change directory (cd) on every argument but it apply also to file.

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Example

resolve('/c','/m','b') = '/m/b'

• the first argument is executed, the current path is the absolute path /c because it begins with a root character /
• the second argument is executed, the current path is the absolute path /m because it begins with a root character /
• the third argument is executed, the current path is the path /m/b because b is a relative path (ie it does not begin with a root character /)