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authorsanine <sanine.not@pm.me>2022-10-01 20:59:36 -0500
committersanine <sanine.not@pm.me>2022-10-01 20:59:36 -0500
commitc5fc66ee58f2c60f2d226868bb1cf5b91badaf53 (patch)
tree277dd280daf10bf77013236b8edfa5f88708c7e0 /libs/ode-0.16.1/OPCODE/Ice/IceUtils.cpp
parent1cf9cc3408af7008451f9133fb95af66a9697d15 (diff)
add ode
Diffstat (limited to 'libs/ode-0.16.1/OPCODE/Ice/IceUtils.cpp')
-rw-r--r--libs/ode-0.16.1/OPCODE/Ice/IceUtils.cpp39
1 files changed, 39 insertions, 0 deletions
diff --git a/libs/ode-0.16.1/OPCODE/Ice/IceUtils.cpp b/libs/ode-0.16.1/OPCODE/Ice/IceUtils.cpp
new file mode 100644
index 0000000..29b6c57
--- /dev/null
+++ b/libs/ode-0.16.1/OPCODE/Ice/IceUtils.cpp
@@ -0,0 +1,39 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ * Contains misc. useful macros & defines.
+ * \file IceUtils.cpp
+ * \author Pierre Terdiman (collected from various sources)
+ * \date April, 4, 2000
+ */
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Precompiled Header
+#include "Stdafx.h"
+
+using namespace IceCore;
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns the alignment of the input address.
+ * \fn Alignment()
+ * \param address [in] address to check
+ * \return the best alignment (e.g. 1 for odd addresses, etc)
+ */
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+udword IceCore::Alignment(udword address)
+{
+ // Returns 0 for null addresses
+ if(!address) return 0;
+
+ // Test all bits
+ udword Align = 1;
+ for(udword i=1;i<32;i++)
+ {
+ // Returns as soon as the alignment is broken
+ if(address&Align) return Align;
+ Align<<=1;
+ }
+ // Here all bits are null, except the highest one (else the address would be null)
+ return Align;
+}