diff options
Diffstat (limited to 'NorthstarDLL/bits.cpp')
-rw-r--r-- | NorthstarDLL/bits.cpp | 92 |
1 files changed, 46 insertions, 46 deletions
diff --git a/NorthstarDLL/bits.cpp b/NorthstarDLL/bits.cpp index 014899f2..db8b1133 100644 --- a/NorthstarDLL/bits.cpp +++ b/NorthstarDLL/bits.cpp @@ -1,46 +1,46 @@ -//=============================================================================// -// -// Purpose: look for NANs, infinities, and underflows. -// -//=============================================================================// - -#include "pch.h" -#include "bits.h" - -//----------------------------------------------------------------------------- -// This follows the ANSI/IEEE 754-1985 standard -//----------------------------------------------------------------------------- -unsigned long& FloatBits(float& f) -{ - return *reinterpret_cast<unsigned long*>(&f); -} - -unsigned long const& FloatBits(float const& f) -{ - return *reinterpret_cast<unsigned long const*>(&f); -} - -float BitsToFloat(unsigned long i) -{ - return *reinterpret_cast<float*>(&i); -} - -bool IsFinite(float f) -{ - return ((FloatBits(f) & 0x7F800000) != 0x7F800000); -} - -unsigned long FloatAbsBits(float f) -{ - return FloatBits(f) & 0x7FFFFFFF; -} - -float FloatMakePositive(float f) -{ - return fabsf(f); -} - -float FloatNegate(float f) -{ - return -f; // BitsToFloat( FloatBits(f) ^ 0x80000000 ); -} +//=============================================================================//
+//
+// Purpose: look for NANs, infinities, and underflows.
+//
+//=============================================================================//
+
+#include "pch.h"
+#include "bits.h"
+
+//-----------------------------------------------------------------------------
+// This follows the ANSI/IEEE 754-1985 standard
+//-----------------------------------------------------------------------------
+unsigned long& FloatBits(float& f)
+{
+ return *reinterpret_cast<unsigned long*>(&f);
+}
+
+unsigned long const& FloatBits(float const& f)
+{
+ return *reinterpret_cast<unsigned long const*>(&f);
+}
+
+float BitsToFloat(unsigned long i)
+{
+ return *reinterpret_cast<float*>(&i);
+}
+
+bool IsFinite(float f)
+{
+ return ((FloatBits(f) & 0x7F800000) != 0x7F800000);
+}
+
+unsigned long FloatAbsBits(float f)
+{
+ return FloatBits(f) & 0x7FFFFFFF;
+}
+
+float FloatMakePositive(float f)
+{
+ return fabsf(f);
+}
+
+float FloatNegate(float f)
+{
+ return -f; // BitsToFloat( FloatBits(f) ^ 0x80000000 );
+}
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