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authorBobTheBob <32057864+BobTheBob9@users.noreply.github.com>2022-08-24 00:32:31 +0100
committerGeckoEidechse <gecko.eidechse+git@pm.me>2022-08-25 21:32:55 +0200
commit46bed8d09f32360377350d71816a76abdfbf2c7c (patch)
tree7feedae4910dbfe0e53d26ea1e00c4616d2c1850 /NorthstarDLL/bits.cpp
parenta97f1f07bb5aa31629cd87023e09669eb4bf1fe9 (diff)
downloadNorthstarLauncher-1.9.5-rc1.tar.gz
NorthstarLauncher-1.9.5-rc1.zip
Adjust folder structure (#242)v1.9.5-rc1v1.9.5
* Adjust folder structure * change launcher directory name
Diffstat (limited to 'NorthstarDLL/bits.cpp')
-rw-r--r--NorthstarDLL/bits.cpp46
1 files changed, 46 insertions, 0 deletions
diff --git a/NorthstarDLL/bits.cpp b/NorthstarDLL/bits.cpp
new file mode 100644
index 00000000..014899f2
--- /dev/null
+++ b/NorthstarDLL/bits.cpp
@@ -0,0 +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 );
+}