ikod.containers.hashmap.HashMap does not behave as expected for const(char)[] keys

[n8sh]

#!/usr/bin/env dub
/+dub.sdl:
dependency "ikod-containers" version="~>0.0.20"
+/
void main()
{
    import ikod.containers.hashmap;

    HashMap!(const(char)[], size_t) map;
    const(char)[] key = "key";
    const(char)[] dupKey = key.dup;
    map[dupKey] = 1;
    assert(map[dupKey] == 1); // passes
    assert(key == dupKey); // passes
    assert(map[key] == 1); // fails: key not found
}

[ikod]

Thanks for report, will check

[n8sh]

I see what's going on, immutable(char)[] hashing is special cased but other arrays are not, so when I changed from string to const(char)[] it switched to hashing the pointer + length instead of the contents pointed to.

ikod-containers/source/ikod/containers/hash.d

Lines 41 to 52 in b8fe3ca

	else static if ( is(T == string) ) {
	// // FNV-1a hash
	// ulong h = 0xcbf29ce484222325;
	// foreach (const ubyte c; cast(ubyte[]) v)
	// {
	// h ^= c;
	// h *= 0x100000001b3;
	// }
	// return cast(hash_t)h;
	import core.internal.hash : bytesHash;
	return bytesHash(cast(void*)v.ptr, v.length, 0);
	}