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Function std.path.isAbsolute
Determines whether a path is absolute or not.
bool isAbsolute(R)
(
R path
) pure nothrow @safe
if (isRandomAccessRange!R && isSomeChar!(ElementType!R) || is(StringTypeOf!R));
Parameters
Name | Description |
---|---|
path | A path name. |
Returns
Whether a path is absolute or not.
Example
On POSIX, an absolute path starts at the root directory.
(In fact, _isAbsolute
is just an alias for isRooted
.)
version (Posix)
{
assert(isAbsolute("/"));
assert(isAbsolute("/foo"));
assert(!isAbsolute("foo"));
assert(!isAbsolute("../foo"));
}
On Windows, an absolute path starts at the root directory of
a specific drive. Hence, it must start with
or d:\
,
where d:/
d
is the drive letter. Alternatively, it may be a
network path, i.e. a path starting with a double (back)slash.
version (Windows)
{
assert(isAbsolute(`d:\`));
assert(isAbsolute(`d:\foo`));
assert(isAbsolute(`\\foo\bar`));
assert(!isAbsolute(`\`));
assert(!isAbsolute(`\foo`));
assert(!isAbsolute("d:foo"));
}
Authors
Lars Tandle Kyllingstad, Walter Bright, Grzegorz Adam Hankiewicz, Thomas Kühne, Andrei Alexandrescu
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.