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Struct std.checkedint.Abort

Force all integral errors to fail by printing an error message to stderr and then abort the program. Abort is the default second argument for Checked.

struct Abort ;

Methods

NameDescription
hookOpCmp (lhs, rhs) Called automatically upon a comparison for ordering using one of the operators <, <=, >, or >=. In case the comparison is erroneous (i.e. it would make a signed negative value appear greater than or equal to an unsigned positive value), then application is terminated with assert(0). Otherwise, the three-state result is returned (positive if lhs > rhs, negative if lhs < rhs, 0 otherwise).
hookOpEquals (lhs, rhs) Called automatically upon a comparison for equality. In case of a erroneous comparison (one that would make a signed negative value appear equal to an unsigned positive value), this hook issues assert(0) which terminates the application.
onBadCast (src) Called automatically upon a bad cast (one that loses precision or attempts to convert a negative value to an unsigned type). The source type is Src and the destination type is Dst.
onLowerBound (rhs, bound) Called automatically upon a bounds error.
onOverflow (lhs) Called automatically upon an overflow during a unary or binary operation.
onUpperBound (rhs, bound) Called automatically upon a bounds error.

Example

void test(T)()
{
    Checked!(int, Abort) x;
    x = 42;
    auto x1 = cast(T) x;
    writeln(x1); // 42
    //x1 += long(int.max);
}
test!short;
test!(const short);
test!(immutable short);

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