hasStandardNullValue

Is true iff T is a type with a standardized null (zero address) value.

template hasStandardNullValue (

) {

static if(is(T == class) || is(T == typeof(null)))

enum hasStandardNullValue;

static if(!(is(T == class) || is(T == typeof(null))))

static if(is(T == struct) || is(T == interface) || is(T == union))

enum hasStandardNullValue;

static if(!(is(T == class) || is(T == typeof(null))))

static if(!(is(T == struct) || is(T == interface) || is(T == union)))

enum hasStandardNullValue;

}

Members

Manifest constants

hasStandardNullValue enum hasStandardNullValue;: Undocumented in source.
hasStandardNullValue enum hasStandardNullValue;: Undocumented in source.
hasStandardNullValue enum hasStandardNullValue;: Undocumented in source.

Examples

class C {}
static assert( hasStandardNullValue!(C));
static assert( hasStandardNullValue!(int*));
static assert( hasStandardNullValue!(int[]));
static assert( hasStandardNullValue!(const(int)[]));
static assert(!hasStandardNullValue!(int[3]));
static assert( hasStandardNullValue!(string));
static assert(!hasStandardNullValue!(int));

hasStandardNullValue

Members

Manifest constants

Examples

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