new file mode 100644
--- /dev/null
+++ b/packages/language/c/libc/current/src/stdlib/bsearch.cxx
@@ -0,0 +1,133 @@
+//===========================================================================
+//
+//      bsearch.cxx
+//
+//      ANSI standard binary search function defined in section 7.10.5.1
+//      of the standard
+//
+//===========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//===========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):   jlarmour
+// Contributors:  jlarmour@cygnus.co.uk
+// Date:        1998-02-13
+// Purpose:     
+// Description: 
+// Usage:       
+//
+//####DESCRIPTIONEND####
+//
+//===========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libc.h>   // Configuration header
+
+// Include the C library?
+#ifdef CYGPKG_LIBC     
+
+// INCLUDES
+
+#include <cyg/infra/cyg_type.h>    // Common type definitions and support
+#include <cyg/infra/cyg_trac.h>    // Tracing support
+#include <cyg/infra/cyg_ass.h>     // Assertion support
+#include <stdlib.h>                // Header for all stdlib functions
+                                   // (like this one)
+#include "clibincl/stdlibsupp.hxx" // Support for stdlib functions
+
+// TRACING
+
+# if defined(CYGDBG_USE_TRACING) && \
+     defined(CYGNUM_LIBC_BSEARCH_TRACE_LEVEL)
+static int bsearch_trace = CYGNUM_LIBC_BSEARCH_TRACE_LEVEL;
+#  define TL1 (0 < bsearch_trace)
+# else
+#  define TL1 (0)
+# endif
+
+
+// EXPORTED SYMBOLS
+
+externC void *
+bsearch( const void *key, const void *base, size_t nmemb, size_t size,
+         Cyg_comparison_fn_t compar ) CYGPRI_LIBC_WEAK_ALIAS("_bsearch");
+
+// FUNCTIONS
+
+externC void *
+_bsearch( const void *key, const void *base, size_t nmemb, size_t size,
+          Cyg_comparison_fn_t compar )
+{
+    CYG_REPORT_FUNCNAMETYPE( "_bsearch", "returning %08x" );
+
+    CYG_REPORT_FUNCARG5( "key=%08x, base=%08x, nmemb=%d, size=%d, "
+                         "compar=%08x", key, base, nmemb, size, compar );
+
+    CYG_CHECK_DATA_PTR( key, "key is not a valid pointer!" );
+    CYG_CHECK_DATA_PTR( base, "base is not a valid pointer!" );
+    CYG_CHECK_FUNC_PTR( compar, "compar is not a valid function pointer!" );
+
+    CYG_ADDRESS current;
+    size_t lower = 0;
+    size_t upper = nmemb;
+    size_t index;
+    int result;
+    
+    if (nmemb == 0 || size == 0)
+    {
+        CYG_TRACE2( TL1, "Warning! either nmemb (%d) or size (%d) is 0",
+                    nmemb, size );
+        CYG_REPORT_RETVAL( NULL );
+        return NULL;
+    } // if
+    
+    while (lower < upper)
+    {
+        index = (lower + upper) / 2;
+        current = (CYG_ADDRESS) (((char *) base) + (index * size));
+        
+        CYG_TRACE2( TL1, "About to call comparison function with "
+                    "key=%08x, current=%08x", key, current );
+        result = compar (key, (void *) current);
+        CYG_TRACE1( TL1, "Comparison function returned %d", result );
+        
+        if (result < 0)
+            upper = index;
+        else if (result > 0)
+            lower = index + 1;
+        else
+        {
+            CYG_REPORT_RETVAL( current );
+            return (void *)current;
+        } // else
+    } // while
+    
+    CYG_REPORT_RETVAL( NULL );
+    return NULL;
+} // _bsearch()
+
+#endif // ifdef CYGPKG_LIBC     
+
+// EOF bsearch.cxx