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Enum member `std.traits.hasUnsharedAliasing`

Returns true if and only if T's representation includes at least one of the following:

a raw pointer U* and U is not immutable or shared;
an array U[] and U is not immutable or shared;
a reference to a class type C and C is not immutable or shared.
an associative array that is not immutable or shared.
a delegate that is not shared.


						
				enum hasUnsharedAliasing(T...)
				 = false;

Example

struct S1 { int a; Object b; }
struct S2 { string a; }
struct S3 { int a; immutable Object b; }
static assert( hasUnsharedAliasing!S1);
static assert(!hasUnsharedAliasing!S2);
static assert(!hasUnsharedAliasing!S3);

struct S4 { int a; shared Object b; }
struct S5 { char[] a; }
struct S6 { shared char[] b; }
struct S7 { float[3] vals; }
static assert(!hasUnsharedAliasing!S4);
static assert( hasUnsharedAliasing!S5);
static assert(!hasUnsharedAliasing!S6);
static assert(!hasUnsharedAliasing!S7);

Authors

Walter Bright, Tomasz Stachowiak (isExpressions), Andrei Alexandrescu, Shin Fujishiro, Robert Clipsham, David Nadlinger, Kenji Hara, Shoichi Kato

License

Boost License 1.0.