| // RUN: %verify "%s" | |
| /******************************************************************************* | |
| * Copyright by the contributors to the Dafny Project | |
| * SPDX-License-Identifier: MIT | |
| *******************************************************************************/ | |
| module {:options "-functionSyntax:4"} Math { | |
| function Min(a: int, b: int): int | |
| { | |
| if a < b | |
| then a | |
| else | |
| b | |
| } | |
| function Max(a: int, b: int): int | |
| { | |
| if a < b | |
| then b | |
| else | |
| a | |
| } | |
| function Abs(a: int): (a': int) | |
| ensures a' >= 0 | |
| { | |
| if a >= 0 then a else -a | |
| } | |
| } | |