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`std.bigint.BigInt.opCast` - multiple declarations

Function BigInt.opCast

Implements casting to bool.


						
				T opCast(T)() const pure nothrow @nogc;

Example

// Non-zero values are regarded as true
auto x = BigInt("1");
auto y = BigInt("10");
assert(x);
assert(y);

// Zero value is regarded as false
auto z = BigInt("0");
assert(!z);

Function BigInt.opCast

Implements casting to integer types.


						
				T opCast(T)() const pure;

Throws

ConvOverflowException if the number exceeds the target type's range.

Example

import std.conv : to, ConvOverflowException;
import std.exception : assertThrown;

writeln(BigInt("0").to!int); // 0

writeln(BigInt("0").to!ubyte); // 0
writeln(BigInt("255").to!ubyte); // 255
assertThrown!ConvOverflowException(BigInt("256").to!ubyte);
assertThrown!ConvOverflowException(BigInt("-1").to!ubyte);

Function BigInt.opCast

Implements casting to/from qualified BigInt's.


						
				T opCast(T)() const pure nothrow @nogc
				

				if (is(Unqual!T == BigInt));

Warning

Casting to/from const or immutable may break type system guarantees. Use with care.

Example

const(BigInt) x = BigInt("123");
BigInt y = cast() x;    // cast away const
writeln(y); // x

Authors

Don Clugston

License

Boost License 1.0.

API Documentation

std.bigint.BigInt.opCast - multiple declarations

Function BigInt.opCast

Example

Function BigInt.opCast

Throws

Example

Function BigInt.opCast

Warning

Example

Authors

License

`std.bigint.BigInt.opCast` - multiple declarations