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Function `std.path.filenameCharCmp`

Compares filename characters.


						
				int filenameCharCmp(CaseSensitive cs = CaseSensitive.osDefault)(
				
  dchar a,
				
  dchar b
				

				) pure nothrow @safe;

This function can perform a case-sensitive or a case-insensitive comparison. This is controlled through the cs template parameter which, if not specified, is given by CaseSensitive.osDefault.

On Windows, the backslash and slash characters (\ and /) are considered equal.

Parameters

Name	Description
cs	Case-sensitivity of the comparison.
a	A filename character.
b	A filename character.

Returns

< 0 if a < b, 0 if a == b, and > 0 if a > b.

Example

writeln(filenameCharCmp('a', 'a')); // 0
assert(filenameCharCmp('a', 'b') < 0);
assert(filenameCharCmp('b', 'a') > 0);

version (linux)
{
    // Same as calling filenameCharCmp!(CaseSensitive.yes)(a, b)
    assert(filenameCharCmp('A', 'a') < 0);
    assert(filenameCharCmp('a', 'A') > 0);
}
version (Windows)
{
    // Same as calling filenameCharCmp!(CaseSensitive.no)(a, b)
    writeln(filenameCharCmp('a', 'A')); // 0
    assert(filenameCharCmp('a', 'B') < 0);
    assert(filenameCharCmp('A', 'b') < 0);
}

Authors

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

License

Boost License 1.0