static assert(isNarrowString!string); static assert(isNarrowString!wstring); static assert(isNarrowString!(char[])); static assert(isNarrowString!(wchar[])); static assert(!isNarrowString!dstring); static assert(!isNarrowString!(dchar[])); static assert(!isNarrowString!(typeof(null))); static assert(!isNarrowString!(char[4])); enum ES : string { a = "aaa", b = "bbb" } static assert(!isNarrowString!ES); static struct Stringish { string str; alias str this; } static assert(!isNarrowString!Stringish);
Detect whether type T is a narrow string.
All arrays that use char, wchar, and their qualified versions are narrow strings. (Those include string and wstring).