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authorgiraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8>2009-05-01 02:25:58 +0000
committergiraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8>2009-05-01 02:25:58 +0000
commit39dd39596b97f09b2e84ed612e60a0402dc3ab41 (patch)
treee244aed80596da9fac78d06db2ed57a5f351fa16 /lib/util/wordaccess_gcc3_be.h
parent76bbc70fe011921c87f3a21a9175152bae293cdf (diff)
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improvements to efficient word access
git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@904 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'lib/util/wordaccess_gcc3_be.h')
-rw-r--r--lib/util/wordaccess_gcc3_be.h17
1 files changed, 0 insertions, 17 deletions
diff --git a/lib/util/wordaccess_gcc3_be.h b/lib/util/wordaccess_gcc3_be.h
index 6f5d86fc..5aa63521 100644
--- a/lib/util/wordaccess_gcc3_be.h
+++ b/lib/util/wordaccess_gcc3_be.h
@@ -4,16 +4,6 @@
 
   * GCC (>=3.4), GLIBC
   * Big-Endian machines
-  
-  __builtin_clz is available on GCC 3.4 and above
-     
-  Note that the clz scheme does not work and requires adjustment
-  if long type does not make use of all bits for data storage.
-  
-  This is unlikely.  According to GNU MP (http://www.swox.com/gmp/),
-  in rare cases such as Cray, there are smaller data types that take up
-  the same space as long, but leave the higher bits silent.  Currently,
-  there are no known such cases for data type long.
 *===========================================================================*/
 
 typedef unsigned long int wordint;
@@ -31,10 +21,3 @@ wordintToBytes(wordintBytes * const bytesP,
                wordint        const wordInt) {
     *(wordint *)bytesP = wordInt;
 }
-
-
-
-static __inline__ unsigned int
-wordintClz(wordint const x) {
-    return (x==0 ? sizeof(wordint)*8 : __builtin_clzl(x));
-}