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/* date = May 13th 2025 1:41 pm */
#ifndef HANDMADE_INTRINSICS_H
#define HANDMADE_INTRINSICS_H
//
// TODO(casey): Remove math.h
//
#include <math.h>
inline s32
RoundReal32ToInt32(r32 Real32)
{
s32 Result = (s32)(roundf(Real32));
return Result;
}
inline u32
RoundReal32ToUInt32(r32 Real32)
{
u32 Result = (u32)(roundf(Real32));
return Result;
}
inline u32
TruncateReal32ToUInt32(r32 Real32)
{
u32 Result = (u32)Real32;
return Result;
}
inline s32
TruncateReal32ToInt32(r32 Real32)
{
s32 Result = (s32)Real32;
return Result;
}
inline s32
FloorReal32ToInt32(r32 Real32)
{
s32 Result = (s32)floorf(Real32);
return Result;
}
inline r32
Sin(r32 Angle)
{
r32 Result = sinf(Angle);
return Result;
}
inline r32
Cos(r32 Angle)
{
r32 Result = cosf(Angle);
return Result;
}
inline r32
Atan2(r32 Y, r32 X)
{
r32 Result = atan2f(Y, X);
return Result;
}
struct bit_scan_result
{
b32 Found;
u32 Index;
};
internal inline bit_scan_result
FindLeastSignificantSetBit(u32 Value)
{
bit_scan_result Result = {};
#if 0
#elif COMPILER_GNU
Result.Index = __builtin_ffs(Value);
if(Result.Index)
{
Result.Found = true;
Result.Index--;
}
#else
for(u32 Test = 0;
Test < 32;
Test++)
{
if(Value & (1 << Test))
{
Result.Index = Test;
Result.Found = true;
break;
}
}
#endif
return Result;
}
#endif //HANDMADE_INTRINSICS_H
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