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Enum std.traits.member isNested
Determines whether T has its own context pointer.
T must be either class, struct, or union.
Declaration
enum isNested(T) = __traits(isNested, T);
Example
static struct S { }
static assert(!isNested!S);
int i;
struct NestedStruct { void f() { ++i; } }
static assert(isNested!NestedStruct);
Authors
Walter Bright,
Tomasz Stachowiak (isExpressions