63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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// This code is based on Lua 5.x implementation licensed under MIT License; see lua_LICENSE.txt for details
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#pragma once
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#include <math.h>
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#define luai_numadd(a, b) ((a) + (b))
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#define luai_numsub(a, b) ((a) - (b))
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#define luai_nummul(a, b) ((a) * (b))
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#define luai_numdiv(a, b) ((a) / (b))
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#define luai_numpow(a, b) (pow(a, b))
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#define luai_numunm(a) (-(a))
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#define luai_numisnan(a) ((a) != (a))
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#define luai_numeq(a, b) ((a) == (b))
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#define luai_numlt(a, b) ((a) < (b))
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#define luai_numle(a, b) ((a) <= (b))
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inline bool luai_veceq(const float* a, const float* b)
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{
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#if LUA_VECTOR_SIZE == 4
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return a[0] == b[0] && a[1] == b[1] && a[2] == b[2] && a[3] == b[3];
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#else
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return a[0] == b[0] && a[1] == b[1] && a[2] == b[2];
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#endif
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}
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inline bool luai_vecisnan(const float* a)
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{
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#if LUA_VECTOR_SIZE == 4
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return a[0] != a[0] || a[1] != a[1] || a[2] != a[2] || a[3] != a[3];
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#else
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return a[0] != a[0] || a[1] != a[1] || a[2] != a[2];
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#endif
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}
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LUAU_FASTMATH_BEGIN
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inline double luai_nummod(double a, double b)
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{
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return a - floor(a / b) * b;
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}
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LUAU_FASTMATH_END
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#define luai_num2int(i, d) ((i) = (int)(d))
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// On MSVC in 32-bit, double to unsigned cast compiles into a call to __dtoui3, so we invoke x87->int64 conversion path manually
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#if defined(_MSC_VER) && defined(_M_IX86)
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#define luai_num2unsigned(i, n) \
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{ \
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__int64 l; \
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__asm { __asm fld n __asm fistp l} \
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; \
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i = (unsigned int)l; \
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}
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#else
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#define luai_num2unsigned(i, n) ((i) = (unsigned)(long long)(n))
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#endif
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#define LUAI_MAXNUM2STR 48
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LUAI_FUNC char* luai_num2str(char* buf, double n);
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#define luai_str2num(s, p) strtod((s), (p))
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