87 lines
1.2 KiB
C++
87 lines
1.2 KiB
C++
#include "precompiled.h"
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#include "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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SAFE_WCSCPY(dst, str);
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return dst;
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}
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#endif
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