18 lines
515 B
C++
18 lines
515 B
C++
/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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namespace lean {
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/** \brief Return v - k. It throws an exception if there is a underflow. */
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int safe_sub(int v, int k);
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int safe_sub(int v, unsigned k);
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/** \brief Return v + k. It throws an exception if there is an overflow. */
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int safe_add(int v, int k);
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int safe_add(int v, unsigned k);
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unsigned safe_add(unsigned v, unsigned k);
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}
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