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Function `std.path.rootName`

Returns the root directory of the specified path, or null if the path is not rooted.


						
				auto rootName(R)
				(
				

				  R path
				

				)
				

				if (isRandomAccessRange!R && hasSlicing!R && hasLength!R && isSomeChar!(ElementType!R) && !isSomeString!R);
				

				

				auto rootName(C)
				(
				

				  C[] path
				

				)
				

				if (isSomeChar!C);

Parameters

Name	Description
path	A path name.

Returns

A slice of path.

Example

assert(rootName("") is null);
assert(rootName("foo") is null);
writeln(rootName("/")); // "/"
writeln(rootName("/foo/bar")); // "/"

version (Windows)
{
    assert(rootName("d:foo") is null);
    writeln(rootName(`d:\foo`)); // `d:\`
    writeln(rootName(`\\server\share\foo`)); // `\\server\share`
    writeln(rootName(`\\server\share`)); // `\\server\share`
}

Authors

Lars Tandle Kyllingstad, Walter Bright, Grzegorz Adam Hankiewicz, Thomas Kühne, Andrei Alexandrescu

License

Boost License 1.0