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Function dmd.root.string.toStaticArray
Infers the length N
of a string literal and coerces its type to a static
array with length N + 1
. Returns the string with a null character appended
to the end.
char[N+1] toStaticArray(ulong N)
(
scope const(char)[N] literal
);
Parameters
Name | Description |
---|---|
literal | string literal |
Notes
- LDC produces quite optimal code for short strings: - https://d.godbolt.org/z/M69Z1g - https://gist.github.com/PetarKirov/338e4ab9292b6b2b311a3070572a07fb (backup URL)
Example
auto m = "123" .toStaticArray;
const c = "123" .toStaticArray;
immutable i = "123" .toStaticArray;
enum e = "123" .toStaticArray;
writeln(m); // "123\0"
writeln(c); // "123\0"
writeln(i); // "123\0"
static assert(e == "123\0");
const empty = "" .toStaticArray;
static assert(empty .length == 1);
static assert(empty[0] == '\0');
Authors
Walter Bright, http://www.digitalmars.com
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.