97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
// Copyright (C) 2002-2018 Nikolaus Gebhardt
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// This file is part of the "irrKlang" library.
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// For conditions of distribution and use, see copyright notice in irrKlang.h
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#ifndef __IRRKLANG_TYPES_H_INCLUDED__
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#define __IRRKLANG_TYPES_H_INCLUDED__
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namespace irrklang
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{
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//! 8 bit unsigned variable.
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/** This is a typedef for unsigned char, it ensures portability of the engine. */
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typedef unsigned char ik_u8;
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//! 8 bit signed variable.
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/** This is a typedef for signed char, it ensures portability of the engine. */
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typedef signed char ik_s8;
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//! 8 bit character variable.
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/** This is a typedef for char, it ensures portability of the engine. */
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typedef char ik_c8;
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//! 16 bit unsigned variable.
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/** This is a typedef for unsigned short, it ensures portability of the engine. */
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typedef unsigned short ik_u16;
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//! 16 bit signed variable.
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/** This is a typedef for signed short, it ensures portability of the engine. */
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typedef signed short ik_s16;
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//! 32 bit unsigned variable.
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/** This is a typedef for unsigned int, it ensures portability of the engine. */
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typedef unsigned int ik_u32;
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//! 32 bit signed variable.
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/** This is a typedef for signed int, it ensures portability of the engine. */
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typedef signed int ik_s32;
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//! 32 bit floating point variable.
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/** This is a typedef for float, it ensures portability of the engine. */
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typedef float ik_f32;
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//! 64 bit floating point variable.
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/** This is a typedef for double, it ensures portability of the engine. */
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typedef double ik_f64;
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// some constants
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const ik_f32 IK_ROUNDING_ERROR_32 = 0.000001f;
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const ik_f64 IK_PI64 = 3.1415926535897932384626433832795028841971693993751;
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const ik_f32 IK_PI32 = 3.14159265359f;
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const ik_f32 IK_RADTODEG = 180.0f / IK_PI32;
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const ik_f32 IK_DEGTORAD = IK_PI32 / 180.0f;
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const ik_f64 IK_RADTODEG64 = 180.0 / IK_PI64;
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const ik_f64 IK_DEGTORAD64 = IK_PI64 / 180.0;
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//! returns if a float equals the other one, taking floating
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//! point rounding errors into account
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inline bool equalsfloat(const ik_f32 a, const ik_f32 b, const ik_f32 tolerance = IK_ROUNDING_ERROR_32)
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{
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return (a + tolerance > b) && (a - tolerance < b);
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}
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} // end irrklang namespace
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// ensure wchar_t type is existing for unicode support
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#include <wchar.h>
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// define the wchar_t type if not already built in.
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#ifdef _MSC_VER // microsoft compiler
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#ifndef _WCHAR_T_DEFINED
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//! A 16 bit wide character type.
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/**
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Defines the wchar_t-type.
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In VS6, its not possible to tell
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the standard compiler to treat wchar_t as a built-in type, and
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sometimes we just don't want to include the huge stdlib.h or wchar.h,
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so we'll use this.
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*/
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typedef unsigned short wchar_t;
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#define _WCHAR_T_DEFINED
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#endif // wchar is not defined
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#endif // microsoft compiler
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#endif // __IRR_TYPES_H_INCLUDED__
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