30 lines
910 B
Nim
30 lines
910 B
Nim
# Stint
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# Copyright 2018 Status Research & Development GmbH
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# Licensed under either of
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#
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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#
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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./datatypes,
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./initialization, ./int_highlow,
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./int_addsub, ./int_comparison
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func `-`*[T: IntImpl](x: T): T {.inline.}=
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# Negate a multi-precision signed int.
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when compileOption("boundChecks"):
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if unlikely(x == low(T)):
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raise newException(OverflowError, "The lowest negative number cannot be negated")
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result = not x
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result += one(T)
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func abs*[T: IntImpl](x: T): T {.inline.}=
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## Returns the absolute value of a signed int.
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result = if x.isNegative: -x
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else: x
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