130 lines
2.6 KiB
C++
130 lines
2.6 KiB
C++
/* Copyright (c) 2010 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "precompiled.h"
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#include "lib/posix/posix.h"
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#if ARCH_IA32
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# include "lib/sysdep/arch/ia32/ia32_asm.h"
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#endif
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#if !HAVE_C99_MATH
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float rintf(float f)
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{
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#if ARCH_IA32
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return ia32_asm_rintf(f);
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#else
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return (float)(int)f;
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#endif
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}
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double rint(double d)
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{
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#if ARCH_IA32
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return ia32_asm_rint(d);
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#else
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return (double)(int)d;
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#endif
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}
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float fminf(float a, float b)
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{
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#if ARCH_IA32
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return ia32_asm_fminf(a, b);
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#else
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return (a < b)? a : b;
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#endif
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}
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float fmaxf(float a, float b)
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{
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#if ARCH_IA32
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return ia32_asm_fmaxf(a, b);
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#else
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return (a > b)? a : b;
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#endif
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}
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size_t fpclassifyd(double d)
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{
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#if ARCH_IA32
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return ia32_asm_fpclassifyd(d);
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#else
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// really sucky stub implementation; doesn't attempt to cover all cases.
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if(d != d)
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return FP_NAN;
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else
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return FP_NORMAL;
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#endif
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}
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size_t fpclassifyf(float f)
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{
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#if ARCH_IA32
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return ia32_asm_fpclassifyf(f);
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#else
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const double d = (double)f;
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return fpclassifyd(d);
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#endif
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}
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#endif // #if !HAVE_C99_MATH
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#if EMULATE_WCSDUP
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wchar_t* wcsdup(const wchar_t* str)
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{
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const size_t num_chars = wcslen(str);
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wchar_t* dst = (wchar_t*)malloc((num_chars+1)*sizeof(wchar_t)); // note: wcsdup is required to use malloc
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if(!dst)
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return 0;
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wcscpy_s(dst, num_chars+1, str);
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return dst;
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}
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#endif
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#if EMULATE_WCSCASECMP
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int wcscasecmp (const wchar_t* s1, const wchar_t* s2)
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{
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wint_t a1, a2;
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if (s1 == s2)
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return 0;
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do
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{
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a1 = towlower(*s1++);
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a2 = towlower(*s2++);
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if (a1 == L'\0')
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break;
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}
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while (a1 == a2);
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return a1 - a2;
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}
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#endif
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