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version 2.098.0

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Function std.file.exists

Determine whether the given file (or directory) exists.

bool exists(R) (
  R name
)
if (isInputRange!R && !isInfinite!R && isSomeChar!(ElementEncodingType!R) && !isConvertibleToString!R);

bool exists(R) (
  auto ref R name
)
if (isConvertibleToString!R);

Parameters

NameDescription
name string or range of characters representing the file name

Returns

true if the file name specified as input exists

Example

auto f = deleteme ~ "does.not.exist";
assert(!f.exists);

f.write("hello");
assert(f.exists);

f.remove;
assert(!f.exists);

Example

assert(".".exists);
assert(!"this file does not exist".exists);
deleteme.write("a\n");
scope(exit) deleteme.remove;
assert(deleteme.exists);

Authors

Walter Bright, Andrei Alexandrescu, Jonathan M Davis

License

Boost License 1.0.