#include "precompiled.h"
#include "posix.h"

#if CPU_IA32
#include "lib/sysdep/ia32/ia32_asm.h"
#endif


#if !HAVE_C99_MATH

float rintf(float f)
{
#if CPU_IA32
    return ia32_asm_rintf(f);
#else
    return (float)(int)f;
#endif
}

double rint(double d)
{
#if CPU_IA32
    return ia32_asm_rint(d);
#else
    return (double)(int)d;
#endif
}


float fminf(float a, float b)
{
#if CPU_IA32
    return ia32_asm_fminf(a, b);
#else
    return (a < b)? a : b;
#endif
}

float fmaxf(float a, float b)
{
#if CPU_IA32
    return ia32_asm_fmaxf(a, b);
#else
    return (a > b)? a : b;
#endif
}


uint fpclassifyd(double d)
{
#if CPU_IA32
    return ia32_asm_fpclassifyd(d);
#else
    // really sucky stub implementation; doesn't attempt to cover all cases.

    if(d != d)
        return FP_NAN;
    else
        return FP_NORMAL;
#endif
}

uint fpclassifyf(float f)
{
#if CPU_IA32
    return ia32_asm_fpclassifyf(f);
#else
    const double d = (double)f;
    return fpclassifyd(d);
#endif
}

#endif  // #if !HAVE_C99_MATH


#if !HAVE_STRDUP
char* strdup(const char* str)
{
    const size_t num_chars = strlen(str);
    char* dst = (char*)malloc((num_chars+1)*sizeof(char));
    if(!dst)
        return 0;
    SAFE_STRCPY(dst, str);
    return dst;
}
#endif

#if !HAVE_WCSDUP
wchar_t* wcsdup(const wchar_t* str)
{
    const size_t num_chars = wcslen(str);
    wchar_t* dst = (wchar_t*)malloc((num_chars+1)*sizeof(wchar_t));
    if(!dst)
        return 0;
    SAFE_WCSCPY(dst, str);
    return dst;
}
#endif  // #if !HAVE_WCSDUP