--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stdcpp/src/complex_trig.cpp	Fri Jun 04 16:20:51 2010 +0100
@@ -0,0 +1,249 @@
+/*
+ * © Portions copyright (c) 2006-2007 Nokia Corporation.  All rights reserved.
+ *
+ * Copyright (c) 1999
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1999 
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted 
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ */ 
+# include "stlport_prefix.h"
+
+
+// Trigonometric and hyperbolic functions for complex<float>, 
+// complex<double>, and complex<long double>
+
+
+#include "complex_impl.h"
+
+#include <cfloat>
+#include <cmath>
+
+#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
+#include "libstdcppwsd.h"
+# endif
+
+_STLP_BEGIN_NAMESPACE
+
+
+//----------------------------------------------------------------------
+// helpers
+
+#ifdef __sgi
+  static const union { unsigned int i; float f; } float_ulimit = { 0x42b2d4fc };
+  static const float float_limit = float_ulimit.f;
+  static union {
+    struct { unsigned int h; unsigned int l; } w;
+    double d;
+  } double_ulimit = { 0x408633ce, 0x8fb9f87d };
+  static const double double_limit = double_ulimit.d;
+  static union {
+    struct { unsigned int h[2]; unsigned int l[2]; } w;
+    long double ld;
+  } ldouble_ulimit = {0x408633ce, 0x8fb9f87e, 0xbd23b659, 0x4e9bd8b1};
+# ifndef _STLP_NO_LONG_DOUBLE
+  static const long double ldouble_limit = ldouble_ulimit.ld;
+# endif
+#else
+#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
+void complex_trig_limit_init()
+{
+	get_complex_trig_float_limit() = _STLP_LOGF(FLT_MAX);
+	get_complex_trig_double_limit() = _STLP_DO_LOG(double)(DBL_MAX);    
+} 
+# else
+  static const float float_limit = _STLP_LOGF(FLT_MAX);
+  static const double double_limit = _STLP_DO_LOG(double)(DBL_MAX);  
+# endif //__LIBSTD_CPP_SYMBIAN32_WSD__
+# ifndef _STLP_NO_LONG_DOUBLE
+  static const long double ldouble_limit = _STLP_LOGL(LDBL_MAX);
+# endif
+#endif
+
+
+//----------------------------------------------------------------------
+// sin
+
+_STLP_EXP_DECLSPEC complex<float>  _STLP_CALL sin(const complex<float>& z) {
+  return complex<float>(_STLP_SINF(z._M_re) * _STLP_COSHF(z._M_im),
+                        _STLP_COSF(z._M_re) * _STLP_SINHF(z._M_im));
+}
+
+_STLP_EXP_DECLSPEC complex<double> _STLP_CALL sin(const complex<double>& z) {
+  return complex<double>(_STLP_SIN(z._M_re) * _STLP_COSH(z._M_im),
+                         _STLP_COS(z._M_re) * _STLP_SINH(z._M_im));
+}
+
+#ifndef _STLP_NO_LONG_DOUBLE
+_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL sin(const complex<long double>& z) {
+  return complex<long double>(_STLP_SINL(z._M_re) * _STLP_COSHL(z._M_im),
+                              _STLP_COSL(z._M_re) * _STLP_SINHL(z._M_im));
+}
+#endif
+
+//----------------------------------------------------------------------
+// cos
+
+_STLP_EXP_DECLSPEC complex<float> _STLP_CALL cos(const complex<float>& z) {
+  return complex<float>(_STLP_COSF(z._M_re) * _STLP_COSHF(z._M_im),
+                        -_STLP_SINF(z._M_re) * _STLP_SINHF(z._M_im));
+}
+
+_STLP_EXP_DECLSPEC complex<double> _STLP_CALL cos(const complex<double>& z) {
+  return complex<double>(_STLP_COS(z._M_re) * _STLP_COSH(z._M_im),
+                        -_STLP_SIN(z._M_re) * _STLP_SINH(z._M_im));
+}
+
+#ifndef _STLP_NO_LONG_DOUBLE
+_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL cos(const complex<long double>& z) {
+  return complex<long double>(_STLP_COSL(z._M_re) * _STLP_COSHL(z._M_im),
+                              -_STLP_SINL(z._M_re) * _STLP_SINHL(z._M_im));
+}
+# endif
+
+//----------------------------------------------------------------------
+// tan
+
+_STLP_EXP_DECLSPEC complex<float> _STLP_CALL tan(const complex<float>& z) {
+  float re2 = 2.f * z._M_re;
+  float im2 = 2.f * z._M_im;
+
+#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
+  if (_STLP_ABSF(im2) > get_complex_trig_float_limit())  
+# else
+  if (_STLP_ABSF(im2) > float_limit)	
+# endif  
+    return complex<float>(0.f, (im2 > 0 ? 1.f : -1.f));
+  else {
+    float den = _STLP_COSF(re2) + _STLP_COSHF(im2);
+    return complex<float>(_STLP_SINF(re2) / den, _STLP_SINHF(im2) / den);
+  }
+}
+
+_STLP_EXP_DECLSPEC complex<double> _STLP_CALL tan(const complex<double>& z) {
+  double re2 = 2. * z._M_re;
+  double im2 = 2. * z._M_im;
+
+#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
+  if (fabs(float(im2)) > get_complex_trig_double_limit())
+# else
+  if (fabs(float(im2)) > double_limit)
+# endif  //__LIBSTD_CPP_SYMBIAN32_WSD__
+    return complex<double>(0., (im2 > 0 ? 1. : -1.));
+  else {
+    double den = _STLP_COS(re2) + _STLP_COSH(im2);
+    return complex<double>(_STLP_SIN(re2) / den, _STLP_SINH(im2) / den);
+  }
+}
+
+#ifndef _STLP_NO_LONG_DOUBLE
+_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL tan(const complex<long double>& z) {
+  long double re2 = 2.l * z._M_re;
+  long double im2 = 2.l * z._M_im;
+  if (_STLP_ABSL(im2) > ldouble_limit)
+    return complex<long double>(0.l, (im2 > 0 ? 1.l : -1.l));
+  else {
+    long double den = _STLP_COSL(re2) + _STLP_COSHL(im2);
+    return complex<long double>(_STLP_SINL(re2) / den, _STLP_SINHL(im2) / den);
+  }
+}
+
+# endif
+
+//----------------------------------------------------------------------
+// sinh
+
+_STLP_EXP_DECLSPEC complex<float> _STLP_CALL sinh(const complex<float>& z) {
+  return complex<float>(_STLP_SINHF(z._M_re) * _STLP_COSF(z._M_im),
+                        _STLP_COSHF(z._M_re) * _STLP_SINF(z._M_im));
+}
+
+_STLP_EXP_DECLSPEC complex<double> _STLP_CALL sinh(const complex<double>& z) {
+  return complex<double>(_STLP_SINH(z._M_re) * _STLP_COS(z._M_im),
+                         _STLP_COSH(z._M_re) * _STLP_SIN(z._M_im));
+}
+
+#ifndef _STLP_NO_LONG_DOUBLE
+_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL sinh(const complex<long double>& z) {
+  return complex<long double>(_STLP_SINHL(z._M_re) * _STLP_COSL(z._M_im),
+                              _STLP_COSHL(z._M_re) * _STLP_SINL(z._M_im));
+}
+#endif
+
+//----------------------------------------------------------------------
+// cosh
+
+_STLP_EXP_DECLSPEC complex<float> _STLP_CALL cosh(const complex<float>& z) {
+  return complex<float>(_STLP_COSHF(z._M_re) * _STLP_COSF(z._M_im),
+                        _STLP_SINHF(z._M_re) * _STLP_SINF(z._M_im));
+}
+
+_STLP_EXP_DECLSPEC complex<double> _STLP_CALL cosh(const complex<double>& z) {
+  return complex<double>(_STLP_COSH(z._M_re) * _STLP_COS(z._M_im),
+                         _STLP_SINH(z._M_re) * _STLP_SIN(z._M_im));
+}
+
+#ifndef _STLP_NO_LONG_DOUBLE
+_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL cosh(const complex<long double>& z) {
+  return complex<long double>(_STLP_COSHL(z._M_re) * _STLP_COSL(z._M_im),
+                              _STLP_SINHL(z._M_re) * _STLP_SINL(z._M_im));
+}
+#endif
+
+//----------------------------------------------------------------------
+// tanh
+
+_STLP_EXP_DECLSPEC complex<float> _STLP_CALL tanh(const complex<float>& z) {
+  float re2 = 2.f * z._M_re;
+  float im2 = 2.f * z._M_im;
+#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
+   if (_STLP_ABSF(re2) > get_complex_trig_float_limit())
+# else
+   if (_STLP_ABSF(re2) > float_limit)
+# endif  //__LIBSTD_CPP_SYMBIAN32_WSD__
+    return complex<float>((re2 > 0 ? 1.f : -1.f), 0.f);
+  else {
+    float den = _STLP_COSHF(re2) + _STLP_COSF(im2);
+    return complex<float>(_STLP_SINHF(re2) / den, _STLP_SINF(im2) / den);
+  }
+}
+
+_STLP_EXP_DECLSPEC complex<double> _STLP_CALL tanh(const complex<double>& z) {
+  double re2 = 2. * z._M_re;
+  double im2 = 2. * z._M_im;  
+ 
+#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
+  if (fabs(float(re2)) > get_complex_trig_double_limit())
+# else
+  if (fabs(float(re2)) > double_limit)
+# endif //__LIBSTD_CPP_SYMBIAN32_WSD__  
+    return complex<double>((re2 > 0 ? 1. : -1.), 0.);
+  else {
+    double den = _STLP_COSH(re2) + _STLP_COS(im2);
+    return complex<double>(_STLP_SINH(re2) / den, _STLP_SIN(im2) / den);
+  }
+}
+
+#ifndef _STLP_NO_LONG_DOUBLE
+_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL tanh(const complex<long double>& z) {
+  long double re2 = 2.l * z._M_re;
+  long double im2 = 2.l * z._M_im;
+  if (_STLP_ABSL(re2) > ldouble_limit)
+    return complex<long double>((re2 > 0 ? 1.l : -1.l), 0.l);
+  else {
+    long double den = _STLP_COSHL(re2) + _STLP_COSL(im2);
+    return complex<long double>(_STLP_SINHL(re2) / den, _STLP_SINL(im2) / den);
+  }
+}
+#endif
+_STLP_END_NAMESPACE