28 lines
919 B
C
28 lines
919 B
C
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/* Copyright (C) 2010 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_MATH_SQRT
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#define INCLUDED_MATH_SQRT
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/**
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* 64-bit integer square root.
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* Returns r such that r^2 <= n < (r+1)^2, for the complete u64 range.
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*/
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u32 isqrt64(u64 n);
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#endif // INCLUDED_MATH_SQRT
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