isPureType

static assert(  isPureType!int );
static assert(  isPureType!(int[]) );
static assert(  isPureType!float );
static assert(  isPureType!(float[]) );

static struct Vec { float x,y,z; }
static assert(  isPureType!Vec );

static struct Arr { int[3] data; }
static assert(  isPureType!Arr );

static struct Some { float f; Vec v; Arr a; }
static assert(  isPureType!Some );

static assert(  isPureType!string );

static assert(  isPureType!(const(string)) );
static assert(  isPureType!(string[]) );

static struct Bad { int[] data; }
static assert( !isPureType!Bad );