1 static assert(isNarrowString!string);
2 static assert(isNarrowString!wstring);
3 static assert(isNarrowString!(char[]));
4 static assert(isNarrowString!(wchar[]));
5
6 static assert(!isNarrowString!dstring);
7 static assert(!isNarrowString!(dchar[]));
8
9 static assert(!isNarrowString!(typeof(null)));
10 static assert(!isNarrowString!(char[4]));
11
12 enum ES : string { a = "aaa", b = "bbb" }
13 static assert(!isNarrowString!ES);
14
15 static struct Stringish
16 {
17 string str;
18 alias str this;
19 }
20 static assert(!isNarrowString!Stringish);
The D Programming Language's Unofficial Docs
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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).