mirror of
https://github.com/ptitSeb/Serious-Engine
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59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd.
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This program is free software; you can redistribute it and/or modify
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it under the terms of version 2 of the GNU General Public License as published by
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the Free Software Foundation
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This program 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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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#ifndef SE_INCL_FLOAT_H
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#define SE_INCL_FLOAT_H
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#ifdef PRAGMA_ONCE
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#pragma once
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#endif
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/*
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* FPU control functions and classes.
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*/
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// FPU precision setting values
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enum FPUPrecisionType {
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FPT_24BIT,
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FPT_53BIT,
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FPT_64BIT,
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};
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/* Get current precision setting of FPU. */
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ENGINE_API enum FPUPrecisionType GetFPUPrecision(void);
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/* Set current precision setting of FPU. */
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ENGINE_API void SetFPUPrecision(enum FPUPrecisionType fptNew);
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/*
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* Class that provides automatic saving/setting/restoring of FPU precision setting.
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*/
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class ENGINE_API CSetFPUPrecision {
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private:
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enum FPUPrecisionType sfp_fptOldPrecision;
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enum FPUPrecisionType sfp_fptNewPrecision;
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public:
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/* Constructor with automatic setting of FPU precision. */
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CSetFPUPrecision(enum FPUPrecisionType fptNew);
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/* Destructor with automatic restoring of FPU precision. */
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~CSetFPUPrecision(void);
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};
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ENGINE_API BOOL IsValidFloat(float f);
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ENGINE_API BOOL IsValidDouble(double f);
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#endif /* include-once check. */
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