isEqual

Tests whether Args[0] is equal to Args[1].

$(D_PSYMBOL isEqual) checks first if Args can be compared directly. If not, they are compared as types: is(Args[0] == Args[1]). It it fails, the arguments are considered to be not equal.

If two items cannot be compared (for example comparing a type with a number), they are considered not equal.

template isEqual (

Args...

) if (

Args.length == 2

) {

static if((is(typeof(Args[0] == Args[1])) && (Args[0] == Args[1])) || (isTypeTuple!Args && is(Args[0] == Args[1])) || __traits(isSame, Args[0], Args[1]))

enum bool isEqual;

static if(!((is(typeof(Args[0] == Args[1])) && (Args[0] == Args[1])) || (isTypeTuple!Args && is(Args[0] == Args[1])) || __traits(isSame, Args[0], Args[1])))

enum bool isEqual;

}

Members

Variables

isEqual enum bool isEqual;: Undocumented in source.
isEqual enum bool isEqual;: Undocumented in source.

Parameters

Args: Two aliases to compare for equality.

Return Value

$(D_KEYWORD true) if Args[0] is equal to Args[1], $(D_KEYWORD false) otherwise.

Examples

static assert(isEqual!(int, int));
static assert(isEqual!(8, 8));
static assert(!isEqual!(int, const(int)));
static assert(!isEqual!(5, int));
static assert(!isEqual!(5, 8));