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Function `std.range.primitives.back`

Implements the range interface primitive back for built-in arrays. Due to the fact that nonmember functions can be called with the first argument using the dot notation, array.back is equivalent to back(array). For narrow strings, back automatically returns the last code point as a dchar.

Prototype

ref T back(T)(
  T[] a
) pure nothrow @nogc @property @safe
if (!isNarrowString!(T[]));

Example

int[] a = [ 1, 2, 3 ];
assert(a.back == 3);
a.back += 4;
assert(a.back == 7);

Authors

Andrei Alexandrescu, David Simcha, and Jonathan M Davis. Credit for some of the ideas in building this module goes to Leonardo Maffi.

License

Boost License 1.0.