--- a/epoc32/include/libc/ieeefp.h Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/libc/ieeefp.h Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,240 @@
-ieeefp.h
+/*
+* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+
+
+
+
+/**
+ @file
+ @publishedAll
+ @released
+*/
+
+#ifndef _IEEE_FP_H_
+#define _IEEE_FP_H_
+
+#include "_ansi.h"
+
+#include <machine/ieeefp.h>
+
+/* FIX THIS FIX THIS FIX THIS:
+ Neither of __ieee_{float,double}_shape_tape seem to be used anywhere
+ except in libm/test. If that is the case, please delete these from here.
+ If that is not the case, please insert documentation here describing why
+ they're needed. */
+
+#ifdef __IEEE_BIG_ENDIAN
+
+typedef union
+{
+ double value;
+ struct
+ {
+ unsigned int sign : 1;
+ unsigned int exponent: 11;
+ unsigned int fraction0:4;
+ unsigned int fraction1:16;
+ unsigned int fraction2:16;
+ unsigned int fraction3:16;
+
+ } number;
+ struct
+ {
+ unsigned int sign : 1;
+ unsigned int exponent: 11;
+ unsigned int quiet:1;
+ unsigned int function0:3;
+ unsigned int function1:16;
+ unsigned int function2:16;
+ unsigned int function3:16;
+ } nan;
+ struct
+ {
+ unsigned long msw;
+ unsigned long lsw;
+ } parts;
+ long aslong[2];
+} __ieee_double_shape_type;
+
+#endif
+
+#ifdef __IEEE_LITTLE_ENDIAN
+
+typedef union
+{
+ double value;
+ struct
+ {
+#ifdef __SMALL_BITFIELDS
+ unsigned int fraction3:16;
+ unsigned int fraction2:16;
+ unsigned int fraction1:16;
+ unsigned int fraction0: 4;
+#else
+ unsigned int fraction1:32;
+ unsigned int fraction0:20;
+#endif
+ unsigned int exponent :11;
+ unsigned int sign : 1;
+ } number;
+ struct
+ {
+#ifdef __SMALL_BITFIELDS
+ unsigned int function3:16;
+ unsigned int function2:16;
+ unsigned int function1:16;
+ unsigned int function0:3;
+#else
+ unsigned int function1:32;
+ unsigned int function0:19;
+#endif
+ unsigned int quiet:1;
+ unsigned int exponent: 11;
+ unsigned int sign : 1;
+ } nan;
+ struct
+ {
+ unsigned long lsw;
+ unsigned long msw;
+ } parts;
+
+ long aslong[2];
+
+} __ieee_double_shape_type;
+
+#endif
+
+#ifdef __IEEE_BIG_ENDIAN
+
+typedef union
+{
+ float value;
+ struct
+ {
+ unsigned int sign : 1;
+ unsigned int exponent: 8;
+ unsigned int fraction0: 7;
+ unsigned int fraction1: 16;
+ } number;
+ struct
+ {
+ unsigned int sign:1;
+ unsigned int exponent:8;
+ unsigned int quiet:1;
+ unsigned int function0:6;
+ unsigned int function1:16;
+ } nan;
+ long p1;
+
+} __ieee_float_shape_type;
+
+#endif
+
+#ifdef __IEEE_LITTLE_ENDIAN
+
+typedef union
+{
+ float value;
+ struct
+ {
+ unsigned int fraction0: 7;
+ unsigned int fraction1: 16;
+ unsigned int exponent: 8;
+ unsigned int sign : 1;
+ } number;
+ struct
+ {
+ unsigned int function1:16;
+ unsigned int function0:6;
+ unsigned int quiet:1;
+ unsigned int exponent:8;
+ unsigned int sign:1;
+ } nan;
+ long p1;
+
+} __ieee_float_shape_type;
+
+#endif
+
+
+/**
+FLOATING ROUNDING
+*/
+typedef int fp_rnd;
+
+#define FP_RN 0 /* Round to nearest */
+#define FP_RM 1 /* Round down */
+#define FP_RP 2 /* Round up */
+#define FP_RZ 3 /* Round to zero (trunate) */
+
+fp_rnd fpgetround(void);
+fp_rnd fpsetround(fp_rnd);
+
+/**
+EXCEPTIONS
+*/
+typedef int fp_except;
+
+#define FP_X_INV 0x10 /* Invalid operation */
+#define FP_X_DX 0x80 /* Divide by zero */
+#define FP_X_OFL 0x04 /* Overflow exception */
+#define FP_X_UFL 0x02 /* Underflow exception */
+#define FP_X_IMP 0x01 /* imprecise exception */
+
+fp_except fpgetmask(void);
+fp_except fpsetmask(fp_except);
+fp_except fpgetsticky(void);
+fp_except fpsetsticky(fp_except);
+
+/**
+INTEGER ROUNDING
+*/
+typedef int fp_rdi;
+#define FP_RDI_TOZ 0 /* Round to Zero */
+#define FP_RDI_RD 1 /* Follow float mode */
+
+fp_rdi fpgetroundtoi(void);
+fp_rdi fpsetroundtoi(fp_rdi);
+
+int isnan(double);
+int isinf(double);
+int finite(double);
+
+int isnanf(float);
+int isinff(float);
+int finitef(float);
+
+#define __IEEE_DBL_EXPBIAS 1023
+#define __IEEE_FLT_EXPBIAS 127
+#define __IEEE_DBL_EXPLEN 11
+#define __IEEE_FLT_EXPLEN 8
+#define __IEEE_DBL_FRACLEN (64 - (__IEEE_DBL_EXPLEN + 1))
+#define __IEEE_FLT_FRACLEN (32 - (__IEEE_FLT_EXPLEN + 1))
+#define __IEEE_DBL_MAXPOWTWO ((double)(1L << 32 - 2) * (1L << (32-11) - 32 + 1))
+#define __IEEE_FLT_MAXPOWTWO ((float)(1L << (32-8) - 1))
+#define __IEEE_DBL_NAN_EXP 0x7ff
+#define __IEEE_FLT_NAN_EXP 0xff
+
+#define isnanf(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
+ ((*(long *)&(x) & 0x007fffffL)!=0000000000L))
+#define isinff(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
+ ((*(long *)&(x) & 0x007fffffL)==0000000000L))
+#define finitef(x) (((*(long *)&(x) & 0x7f800000L)!=0x7f800000L))
+
+#endif /* _IEEE_FP_H_ */