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@@ -0,0 +1,188 @@
+#ifndef CYGONCE_LIBM_MATHINCL_FDLIBM_H
+#define CYGONCE_LIBM_MATHINCL_FDLIBM_H
+//===========================================================================
+//
+//      fdlibm.h
+//
+//      Internal definitions for math library implementation based on fdlibm
+//
+//===========================================================================
+//####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@cygnus.co.uk
+// Contributors:  jlarmour@cygnus.co.uk
+// Date:        1998-02-13
+// Purpose:     
+// Description: Internal implementation-specific header for math library
+//              based on fdlibm
+// Usage:       From within this package, #include "mathincl/fdlibm.h"
+//
+//####DESCRIPTIONEND####
+//
+//===========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libm.h>   // Configuration header
+
+// Include the Math library?
+#ifdef CYGPKG_LIBM     
+
+// INCLUDES
+
+#include <cyg/infra/cyg_type.h>    // Common type definitions and support
+#include <math.h>                  // Main header for math library
+#include <float.h>                 // Properties of FP representation on this
+                                   // platform
+
+// SANITY CHECKS
+
+// Just check that we support IEEE-style 64-bit doubles. If not, this
+// math library will not work
+// This check will go away when support for single-precision alternatives are
+// provided
+
+#if DBL_MAX_EXP != 1024
+# error IEEE-style 64-bit doubles are required to use the math library
+#endif // if DBL_MAX_EXP == 1024
+
+
+// MACRO DEFINITIONS
+
+
+#if (CYG_BYTEORDER == CYG_LSBFIRST) // little endian
+#define CYG_LIBM_HI(x)  (*(1+(cyg_int32*)&(x)))
+#define CYG_LIBM_LO(x)  (*(cyg_int32*)&(x))
+#define CYG_LIBM_HIp(x) (*(1+(cyg_int32*)(x)))
+#define CYG_LIBM_LOp(x) (*(cyg_int32*)(x))
+#else                               // big endian
+#define CYG_LIBM_HI(x)  (*(cyg_int32*)&(x))
+#define CYG_LIBM_LO(x)  (*(1+(cyg_int32*)&(x)))
+#define CYG_LIBM_HIp(x) (*(cyg_int32*)(x))
+#define CYG_LIBM_LOp(x) (*(1+(cyg_int32*)(x)))
+#endif
+
+
+// REPLACEMENTS FOR STUFF FROM MATH.H DUE TO CONFIG OPTION
+
+#ifdef CYGSYM_LIBM_NO_XOPEN_SVID_NAMESPACE_POLLUTION
+
+#define HUGE            FLT_MAX    // from float.h
+#define DOMAIN          1
+#define SING            2
+#define OVERFLOW        3
+#define UNDERFLOW       4
+#define TLOSS           5
+#define PLOSS           6
+
+struct exception {
+    int type;       // One of DOMAIN, SING, OVERFLOW, UNDERFLOW, TLOSS, PLOSS
+    char *name;     // Name of the function generating the exception
+    double arg1;    // First argument to the function
+    double arg2;    // Second argument to the function
+    double retval;  // Value to be returned - can be altered by matherr()
+};
+
+externC int
+matherr( struct exception * );    // User-overridable error handling - see
+                                  // <pkgconf/libm.h> for a discussion
+#endif // ifdef CYGSYM_LIBM_NO_XOPEN_SVID_NAMESPACE_POLLUTION
+
+
+
+// FUNCTION PROTOTYPES
+
+// IEEE-754 style elementary functions */
+
+externC double
+__ieee754_sqrt( double );
+
+externC double
+__ieee754_acos( double );
+
+
+externC double
+__ieee754_log( double );
+
+
+externC double
+__ieee754_asin( double );
+
+externC double
+__ieee754_atan2( double, double );
+
+externC double
+__ieee754_exp( double );
+
+externC double
+__ieee754_cosh( double );
+
+externC double
+__ieee754_fmod( double, double );
+
+externC double
+__ieee754_pow( double, double );
+
+
+externC double
+__ieee754_log10( double );
+
+externC double
+__ieee754_sinh( double );
+
+
+externC int
+__ieee754_rem_pio2( double, double * );
+
+#ifdef CYGFUN_LIBM_SVID3_scalb
+externC double
+__ieee754_scalb( double, double );
+#else
+externC double
+__ieee754_scalb( double, int );
+#endif
+
+// FDLIBM kernel functions
+
+externC double
+__kernel_standard( double, double, int );
+
+externC double
+__kernel_sin( double, double, int );
+
+externC double
+__kernel_cos( double, double );
+
+externC double
+__kernel_tan( double, double, int );
+
+externC int
+__kernel_rem_pio2( double *, double *, int, int, int, const int * );
+
+#endif // ifdef CYGPKG_LIBM     
+
+#endif // CYGONCE_LIBM_MATHINCL_FDLIBM_H multiple inclusion protection
+
+// EOF fdlibm.h