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-rw-r--r--include/complex.h107
-rw-r--r--include/fpu_control.h98
-rw-r--r--include/tgmath.h430
-rw-r--r--libm/Makefile2
-rw-r--r--libm/fpmacros.c108
-rw-r--r--libm/nan.c48
6 files changed, 747 insertions, 46 deletions
diff --git a/include/complex.h b/include/complex.h
new file mode 100644
index 000000000..f005a9391
--- /dev/null
+++ b/include/complex.h
@@ -0,0 +1,107 @@
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/*
+ * ISO C99: 7.3 Complex arithmetic <complex.h>
+ */
+
+#ifndef _COMPLEX_H
+#define _COMPLEX_H 1
+
+#include <features.h>
+
+/* Get general and ISO C99 specific information. */
+#include <bits/mathdef.h>
+
+__BEGIN_DECLS
+
+/* We might need to add support for more compilers here. But since ISO
+ C99 is out hopefully all maintained compilers will soon provide the data
+ types `float complex' and `double complex'. */
+#if __GNUC_PREREQ (2, 7) && !__GNUC_PREREQ (2, 97)
+# define _Complex __complex__
+#endif
+
+#define complex _Complex
+
+/* Narrowest imaginary unit. This depends on the floating-point
+ evaluation method.
+ XXX This probably has to go into a gcc related file. */
+#define _Complex_I (__extension__ 1.0iF)
+
+/* Another more descriptive name is `I'.
+ XXX Once we have the imaginary support switch this to _Imaginary_I. */
+#undef I
+#define I _Complex_I
+
+/* The file <bits/cmathcalls.h> contains the prototypes for all the
+ actual math functions. These macros are used for those prototypes,
+ so we can easily declare each function as both `name' and `__name',
+ and can declare the float versions `namef' and `__namef'. */
+
+#define __MATHCALL(function, args) \
+ __MATHDECL (_Mdouble_complex_,function, args)
+#define __MATHDECL(type, function, args) \
+ __MATHDECL_1(type, function, args); \
+ __MATHDECL_1(type, __CONCAT(__,function), args)
+#define __MATHDECL_1(type, function, args) \
+ extern type __MATH_PRECNAME(function) args __THROW
+
+#define _Mdouble_ double
+#define __MATH_PRECNAME(name) name
+#include <bits/cmathcalls.h>
+#undef _Mdouble_
+#undef __MATH_PRECNAME
+
+/* Now the float versions. */
+#ifndef _Mfloat_
+# define _Mfloat_ float
+#endif
+#define _Mdouble_ _Mfloat_
+#ifdef __STDC__
+# define __MATH_PRECNAME(name) name##f
+#else
+# define __MATH_PRECNAME(name) name/**/f
+#endif
+#include <bits/cmathcalls.h>
+#undef _Mdouble_
+#undef __MATH_PRECNAME
+
+/* And the long double versions. It is non-critical to define them
+ here unconditionally since `long double' is required in ISO C99. */
+#if __STDC__ - 0 || __GNUC__ - 0 && !defined __NO_LONG_DOUBLE_MATH
+# ifndef _Mlong_double_
+# define _Mlong_double_ long double
+# endif
+# define _Mdouble_ _Mlong_double_
+# ifdef __STDC__
+# define __MATH_PRECNAME(name) name##l
+# else
+# define __MATH_PRECNAME(name) name/**/l
+# endif
+# include <bits/cmathcalls.h>
+#endif
+#undef _Mdouble_
+#undef __MATH_PRECNAME
+#undef __MATHDECL_1
+#undef __MATHDECL
+#undef __MATHCALL
+
+__END_DECLS
+
+#endif /* complex.h */
diff --git a/include/fpu_control.h b/include/fpu_control.h
new file mode 100644
index 000000000..ed9bf388a
--- /dev/null
+++ b/include/fpu_control.h
@@ -0,0 +1,98 @@
+/* FPU control word bits. i387 version.
+ Copyright (C) 1993,1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Olaf Flebbe.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H 1
+
+/* Here is the dirty part. Set up your 387 through the control word
+ * (cw) register.
+ *
+ * 15-13 12 11-10 9-8 7-6 5 4 3 2 1 0
+ * | reserved | IC | RC | PC | reserved | PM | UM | OM | ZM | DM | IM
+ *
+ * IM: Invalid operation mask
+ * DM: Denormalized operand mask
+ * ZM: Zero-divide mask
+ * OM: Overflow mask
+ * UM: Underflow mask
+ * PM: Precision (inexact result) mask
+ *
+ * Mask bit is 1 means no interrupt.
+ *
+ * PC: Precision control
+ * 11 - round to extended precision
+ * 10 - round to double precision
+ * 00 - round to single precision
+ *
+ * RC: Rounding control
+ * 00 - rounding to nearest
+ * 01 - rounding down (toward - infinity)
+ * 10 - rounding up (toward + infinity)
+ * 11 - rounding toward zero
+ *
+ * IC: Infinity control
+ * That is for 8087 and 80287 only.
+ *
+ * The hardware default is 0x037f which we use.
+ */
+
+#include <features.h>
+
+/* masking of interrupts */
+#define _FPU_MASK_IM 0x01
+#define _FPU_MASK_DM 0x02
+#define _FPU_MASK_ZM 0x04
+#define _FPU_MASK_OM 0x08
+#define _FPU_MASK_UM 0x10
+#define _FPU_MASK_PM 0x20
+
+/* precision control */
+#define _FPU_EXTENDED 0x300 /* libm requires double extended precision. */
+#define _FPU_DOUBLE 0x200
+#define _FPU_SINGLE 0x0
+
+/* rounding control */
+#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */
+#define _FPU_RC_DOWN 0x400
+#define _FPU_RC_UP 0x800
+#define _FPU_RC_ZERO 0xC00
+
+#define _FPU_RESERVED 0xF0C0 /* Reserved bits in cw */
+
+
+/* The fdlibm code requires strict IEEE double precision arithmetic,
+ and no interrupts for exceptions, rounding to nearest. */
+
+#define _FPU_DEFAULT 0x037f
+
+/* IEEE: same as above. */
+#define _FPU_IEEE 0x037f
+
+/* Type of the control word. */
+typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__HI__)));
+
+/* Macros for accessing the hardware control word. */
+#define _FPU_GETCW(cw) __asm__ ("fnstcw %0" : "=m" (*&cw))
+#define _FPU_SETCW(cw) __asm__ ("fldcw %0" : : "m" (*&cw))
+
+/* Default control word set at startup. */
+extern fpu_control_t __fpu_control;
+
+#endif /* fpu_control.h */
diff --git a/include/tgmath.h b/include/tgmath.h
new file mode 100644
index 000000000..5fb683fef
--- /dev/null
+++ b/include/tgmath.h
@@ -0,0 +1,430 @@
+/* Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/*
+ * ISO C99 Standard: 7.22 Type-generic math <tgmath.h>
+ */
+
+#ifndef _TGMATH_H
+#define _TGMATH_H 1
+
+/* Include the needed headers. */
+#include <math.h>
+#include <complex.h>
+
+
+/* Since `complex' is currently not really implemented in most C compilers
+ and if it is implemented, the implementations differ. This makes it
+ quite difficult to write a generic implementation of this header. We
+ do not try this for now and instead concentrate only on GNU CC. Once
+ we have more information support for other compilers might follow. */
+
+#if __GNUC_PREREQ (2, 7)
+
+# ifdef __NO_LONG_DOUBLE_MATH
+# define __tgml(fct) fct
+# else
+# define __tgml(fct) fct ## l
+# endif
+
+/* This is ugly but unless gcc gets appropriate builtins we have to do
+ something like this. Don't ask how it works. */
+
+/* 1 if 'type' is a floating type, 0 if 'type' is an integer type.
+ Allows for _Bool. Expands to an integer constant expression. */
+# define __floating_type(type) (((type) 0.25) && ((type) 0.25 - 1))
+
+/* The tgmath real type for T, where E is 0 if T is an integer type and
+ 1 for a floating type. */
+# define __tgmath_real_type_sub(T, E) \
+ __typeof__(*(0 ? (__typeof__ (0 ? (double *) 0 : (void *) (E))) 0 \
+ : (__typeof__ (0 ? (T *) 0 : (void *) (!(E)))) 0))
+
+/* The tgmath real type of EXPR. */
+# define __tgmath_real_type(expr) \
+ __tgmath_real_type_sub(__typeof__(expr), __floating_type(__typeof__(expr)))
+
+
+/* We have two kinds of generic macros: to support functions which are
+ only defined on real valued parameters and those which are defined
+ for complex functions as well. */
+# define __TGMATH_UNARY_REAL_ONLY(Val, Fct) \
+ (__extension__ ({ __tgmath_real_type (Val) __tgmres; \
+ if (sizeof (Val) == sizeof (double) \
+ || __builtin_classify_type (Val) != 8) \
+ __tgmres = Fct (Val); \
+ else if (sizeof (Val) == sizeof (float)) \
+ __tgmres = Fct##f (Val); \
+ else \
+ __tgmres = __tgml(Fct) (Val); \
+ __tgmres; }))
+
+# define __TGMATH_BINARY_FIRST_REAL_ONLY(Val1, Val2, Fct) \
+ (__extension__ ({ __tgmath_real_type (Val1) __tgmres; \
+ if (sizeof (Val1) == sizeof (double) \
+ || __builtin_classify_type (Val1) != 8) \
+ __tgmres = Fct (Val1, Val2); \
+ else if (sizeof (Val1) == sizeof (float)) \
+ __tgmres = Fct##f (Val1, Val2); \
+ else \
+ __tgmres = __tgml(Fct) (Val1, Val2); \
+ __tgmres; }))
+
+# define __TGMATH_BINARY_REAL_ONLY(Val1, Val2, Fct) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2)) __tgmres; \
+ if ((sizeof (Val1) > sizeof (double) \
+ || sizeof (Val2) > sizeof (double)) \
+ && __builtin_classify_type ((Val1) + (Val2)) == 8) \
+ __tgmres = __tgml(Fct) (Val1, Val2); \
+ else if (sizeof (Val1) == sizeof (double) \
+ || sizeof (Val2) == sizeof (double) \
+ || __builtin_classify_type (Val1) != 8 \
+ || __builtin_classify_type (Val2) != 8) \
+ __tgmres = Fct (Val1, Val2); \
+ else \
+ __tgmres = Fct##f (Val1, Val2); \
+ __tgmres; }))
+
+# define __TGMATH_TERNARY_FIRST_SECOND_REAL_ONLY(Val1, Val2, Val3, Fct) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2)) __tgmres; \
+ if ((sizeof (Val1) > sizeof (double) \
+ || sizeof (Val2) > sizeof (double)) \
+ && __builtin_classify_type ((Val1) + (Val2)) == 8) \
+ __tgmres = __tgml(Fct) (Val1, Val2, Val3); \
+ else if (sizeof (Val1) == sizeof (double) \
+ || sizeof (Val2) == sizeof (double) \
+ || __builtin_classify_type (Val1) != 8 \
+ || __builtin_classify_type (Val2) != 8) \
+ __tgmres = Fct (Val1, Val2, Val3); \
+ else \
+ __tgmres = Fct##f (Val1, Val2, Val3); \
+ __tgmres; }))
+
+# define __TGMATH_TERNARY_REAL_ONLY(Val1, Val2, Val3, Fct) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2) + (Val3)) __tgmres;\
+ if ((sizeof (Val1) > sizeof (double) \
+ || sizeof (Val2) > sizeof (double) \
+ || sizeof (Val3) > sizeof (double)) \
+ && __builtin_classify_type ((Val1) + (Val2) \
+ + (Val3)) == 8) \
+ __tgmres = __tgml(Fct) (Val1, Val2, Val3); \
+ else if (sizeof (Val1) == sizeof (double) \
+ || sizeof (Val2) == sizeof (double) \
+ || sizeof (Val3) == sizeof (double) \
+ || __builtin_classify_type (Val1) != 8 \
+ || __builtin_classify_type (Val2) != 8 \
+ || __builtin_classify_type (Val3) != 8) \
+ __tgmres = Fct (Val1, Val2, Val3); \
+ else \
+ __tgmres = Fct##f (Val1, Val2, Val3); \
+ __tgmres; }))
+
+/* XXX This definition has to be changed as soon as the compiler understands
+ the imaginary keyword. */
+# define __TGMATH_UNARY_REAL_IMAG(Val, Fct, Cfct) \
+ (__extension__ ({ __tgmath_real_type (Val) __tgmres; \
+ if (sizeof (__real__ (Val)) > sizeof (double) \
+ && __builtin_classify_type (__real__ (Val)) == 8) \
+ { \
+ if (sizeof (__real__ (Val)) == sizeof (Val)) \
+ __tgmres = __tgml(Fct) (Val); \
+ else \
+ __tgmres = __tgml(Cfct) (Val); \
+ } \
+ else if (sizeof (__real__ (Val)) == sizeof (double) \
+ || __builtin_classify_type (__real__ (Val)) \
+ != 8) \
+ { \
+ if (sizeof (__real__ (Val)) == sizeof (Val)) \
+ __tgmres = Fct (Val); \
+ else \
+ __tgmres = Cfct (Val); \
+ } \
+ else \
+ { \
+ if (sizeof (__real__ (Val)) == sizeof (Val)) \
+ __tgmres = Fct##f (Val); \
+ else \
+ __tgmres = Cfct##f (Val); \
+ } \
+ __tgmres; }))
+
+/* XXX This definition has to be changed as soon as the compiler understands
+ the imaginary keyword. */
+# define __TGMATH_UNARY_IMAG_ONLY(Val, Fct) \
+ (__extension__ ({ __tgmath_real_type (Val) __tgmres; \
+ if (sizeof (Val) == sizeof (__complex__ double) \
+ || __builtin_classify_type (__real__ (Val)) != 8) \
+ __tgmres = Fct (Val); \
+ else if (sizeof (Val) == sizeof (__complex__ float)) \
+ __tgmres = Fct##f (Val); \
+ else \
+ __tgmres = __tgml(Fct) (Val); \
+ __tgmres; }))
+
+/* XXX This definition has to be changed as soon as the compiler understands
+ the imaginary keyword. */
+# define __TGMATH_BINARY_REAL_IMAG(Val1, Val2, Fct, Cfct) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2)) __tgmres; \
+ if ((sizeof (__real__ (Val1)) > sizeof (double) \
+ || sizeof (__real__ (Val2)) > sizeof (double)) \
+ && __builtin_classify_type (__real__ (Val1) \
+ + __real__ (Val2)) \
+ == 8) \
+ { \
+ if (sizeof (__real__ (Val1)) == sizeof (Val1) \
+ && sizeof (__real__ (Val2)) == sizeof (Val2)) \
+ __tgmres = __tgml(Fct) (Val1, Val2); \
+ else \
+ __tgmres = __tgml(Cfct) (Val1, Val2); \
+ } \
+ else if (sizeof (__real__ (Val1)) == sizeof (double) \
+ || sizeof (__real__ (Val2)) == sizeof(double) \
+ || (__builtin_classify_type (__real__ (Val1)) \
+ != 8) \
+ || (__builtin_classify_type (__real__ (Val2)) \
+ != 8)) \
+ { \
+ if (sizeof (__real__ (Val1)) == sizeof (Val1) \
+ && sizeof (__real__ (Val2)) == sizeof (Val2)) \
+ __tgmres = Fct (Val1, Val2); \
+ else \
+ __tgmres = Cfct (Val1, Val2); \
+ } \
+ else \
+ { \
+ if (sizeof (__real__ (Val1)) == sizeof (Val1) \
+ && sizeof (__real__ (Val2)) == sizeof (Val2)) \
+ __tgmres = Fct##f (Val1, Val2); \
+ else \
+ __tgmres = Cfct##f (Val1, Val2); \
+ } \
+ __tgmres; }))
+#else
+# error "Unsupported compiler; you cannot use <tgmath.h>"
+#endif
+
+
+/* Unary functions defined for real and complex values. */
+
+
+/* Trigonometric functions. */
+
+/* Arc cosine of X. */
+#define acos(Val) __TGMATH_UNARY_REAL_IMAG (Val, acos, cacos)
+/* Arc sine of X. */
+#define asin(Val) __TGMATH_UNARY_REAL_IMAG (Val, asin, casin)
+/* Arc tangent of X. */
+#define atan(Val) __TGMATH_UNARY_REAL_IMAG (Val, atan, catan)
+/* Arc tangent of Y/X. */
+#define atan2(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, atan2)
+
+/* Cosine of X. */
+#define cos(Val) __TGMATH_UNARY_REAL_IMAG (Val, cos, ccos)
+/* Sine of X. */
+#define sin(Val) __TGMATH_UNARY_REAL_IMAG (Val, sin, csin)
+/* Tangent of X. */
+#define tan(Val) __TGMATH_UNARY_REAL_IMAG (Val, tan, ctan)
+
+
+/* Hyperbolic functions. */
+
+/* Hyperbolic arc cosine of X. */
+#define acosh(Val) __TGMATH_UNARY_REAL_IMAG (Val, acosh, cacosh)
+/* Hyperbolic arc sine of X. */
+#define asinh(Val) __TGMATH_UNARY_REAL_IMAG (Val, asinh, casinh)
+/* Hyperbolic arc tangent of X. */
+#define atanh(Val) __TGMATH_UNARY_REAL_IMAG (Val, atanh, catanh)
+
+/* Hyperbolic cosine of X. */
+#define cosh(Val) __TGMATH_UNARY_REAL_IMAG (Val, cosh, ccosh)
+/* Hyperbolic sine of X. */
+#define sinh(Val) __TGMATH_UNARY_REAL_IMAG (Val, sinh, csinh)
+/* Hyperbolic tangent of X. */
+#define tanh(Val) __TGMATH_UNARY_REAL_IMAG (Val, tanh, ctanh)
+
+
+/* Exponential and logarithmic functions. */
+
+/* Exponential function of X. */
+#define exp(Val) __TGMATH_UNARY_REAL_IMAG (Val, exp, cexp)
+
+/* Break VALUE into a normalized fraction and an integral power of 2. */
+#define frexp(Val1, Val2) __TGMATH_BINARY_FIRST_REAL_ONLY (Val1, Val2, frexp)
+
+/* X times (two to the EXP power). */
+#define ldexp(Val1, Val2) __TGMATH_BINARY_FIRST_REAL_ONLY (Val1, Val2, ldexp)
+
+/* Natural logarithm of X. */
+#define log(Val) __TGMATH_UNARY_REAL_IMAG (Val, log, clog)
+
+/* Base-ten logarithm of X. */
+#ifdef __USE_GNU
+# define log10(Val) __TGMATH_UNARY_REAL_IMAG (Val, log10, __clog10)
+#else
+# define log10(Val) __TGMATH_UNARY_REAL_ONLY (Val, log10)
+#endif
+
+/* Return exp(X) - 1. */
+#define expm1(Val) __TGMATH_UNARY_REAL_ONLY (Val, expm1)
+
+/* Return log(1 + X). */
+#define log1p(Val) __TGMATH_UNARY_REAL_ONLY (Val, log1p)
+
+/* Return the base 2 signed integral exponent of X. */
+#define logb(Val) __TGMATH_UNARY_REAL_ONLY (Val, logb)
+
+/* Compute base-2 exponential of X. */
+#define exp2(Val) __TGMATH_UNARY_REAL_ONLY (Val, exp2)
+
+/* Compute base-2 logarithm of X. */
+#define log2(Val) __TGMATH_UNARY_REAL_ONLY (Val, log2)
+
+
+/* Power functions. */
+
+/* Return X to the Y power. */
+#define pow(Val1, Val2) __TGMATH_BINARY_REAL_IMAG (Val1, Val2, pow, cpow)
+
+/* Return the square root of X. */
+#define sqrt(Val) __TGMATH_UNARY_REAL_IMAG (Val, sqrt, csqrt)
+
+/* Return `sqrt(X*X + Y*Y)'. */
+#define hypot(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, hypot)
+
+/* Return the cube root of X. */
+#define cbrt(Val) __TGMATH_UNARY_REAL_ONLY (Val, cbrt)
+
+
+/* Nearest integer, absolute value, and remainder functions. */
+
+/* Smallest integral value not less than X. */
+#define ceil(Val) __TGMATH_UNARY_REAL_ONLY (Val, ceil)
+
+/* Absolute value of X. */
+#define fabs(Val) __TGMATH_UNARY_REAL_IMAG (Val, fabs, cabs)
+
+/* Largest integer not greater than X. */
+#define floor(Val) __TGMATH_UNARY_REAL_ONLY (Val, floor)
+
+/* Floating-point modulo remainder of X/Y. */
+#define fmod(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, fmod)
+
+/* Round X to integral valuein floating-point format using current
+ rounding direction, but do not raise inexact exception. */
+#define nearbyint(Val) __TGMATH_UNARY_REAL_ONLY (Val, nearbyint)
+
+/* Round X to nearest integral value, rounding halfway cases away from
+ zero. */
+#define round(Val) __TGMATH_UNARY_REAL_ONLY (Val, round)
+
+/* Round X to the integral value in floating-point format nearest but
+ not larger in magnitude. */
+#define trunc(Val) __TGMATH_UNARY_REAL_ONLY (Val, trunc)
+
+/* Compute remainder of X and Y and put in *QUO a value with sign of x/y
+ and magnitude congruent `mod 2^n' to the magnitude of the integral
+ quotient x/y, with n >= 3. */
+#define remquo(Val1, Val2, Val3) \
+ __TGMATH_TERNARY_FIRST_SECOND_REAL_ONLY (Val1, Val2, Val3, remquo)
+
+/* Round X to nearest integral value according to current rounding
+ direction. */
+#define lrint(Val) __TGMATH_UNARY_REAL_ONLY (Val, lrint)
+#define llrint(Val) __TGMATH_UNARY_REAL_ONLY (Val, llrint)
+
+/* Round X to nearest integral value, rounding halfway cases away from
+ zero. */
+#define lround(Val) __TGMATH_UNARY_REAL_ONLY (Val, lround)
+#define llround(Val) __TGMATH_UNARY_REAL_ONLY (Val, llround)
+
+
+/* Return X with its signed changed to Y's. */
+#define copysign(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, copysign)
+
+/* Error and gamma functions. */
+#define erf(Val) __TGMATH_UNARY_REAL_ONLY (Val, erf)
+#define erfc(Val) __TGMATH_UNARY_REAL_ONLY (Val, erfc)
+#define tgamma(Val) __TGMATH_UNARY_REAL_ONLY (Val, tgamma)
+#define lgamma(Val) __TGMATH_UNARY_REAL_ONLY (Val, lgamma)
+
+
+/* Return the integer nearest X in the direction of the
+ prevailing rounding mode. */
+#define rint(Val) __TGMATH_UNARY_REAL_ONLY (Val, rint)
+
+/* Return X + epsilon if X < Y, X - epsilon if X > Y. */
+#define nextafter(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, nextafter)
+#define nexttoward(Val1, Val2) \
+ __TGMATH_BINARY_FIRST_REAL_ONLY (Val1, Val2, nexttoward)
+
+/* Return the remainder of integer divison X / Y with infinite precision. */
+#define remainder(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, remainder)
+
+/* Return X times (2 to the Nth power). */
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
+# define scalb(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, scalb)
+#endif
+
+/* Return X times (2 to the Nth power). */
+#define scalbn(Val1, Val2) __TGMATH_BINARY_FIRST_REAL_ONLY (Val1, Val2, scalbn)
+
+/* Return X times (2 to the Nth power). */
+#define scalbln(Val1, Val2) \
+ __TGMATH_BINARY_FIRST_REAL_ONLY (Val1, Val2, scalbln)
+
+/* Return the binary exponent of X, which must be nonzero. */
+#define ilogb(Val) __TGMATH_UNARY_REAL_ONLY (Val, ilogb)
+
+
+/* Return positive difference between X and Y. */
+#define fdim(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, fdim)
+
+/* Return maximum numeric value from X and Y. */
+#define fmax(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, fmax)
+
+/* Return minimum numeric value from X and Y. */
+#define fmin(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, fmin)
+
+
+/* Multiply-add function computed as a ternary operation. */
+#define fma(Val1, Val2, Val3) \
+ __TGMATH_TERNARY_REAL_ONLY (Val1, Val2, Val3, fma)
+
+
+/* Absolute value, conjugates, and projection. */
+
+/* Argument value of Z. */
+#define carg(Val) __TGMATH_UNARY_IMAG_ONLY (Val, carg)
+
+/* Complex conjugate of Z. */
+#define conj(Val) __TGMATH_UNARY_IMAG_ONLY (Val, conj)
+
+/* Projection of Z onto the Riemann sphere. */
+#define cproj(Val) __TGMATH_UNARY_IMAG_ONLY (Val, cproj)
+
+
+/* Decomposing complex values. */
+
+/* Imaginary part of Z. */
+#define cimag(Val) __TGMATH_UNARY_IMAG_ONLY (Val, cimag)
+
+/* Real part of Z. */
+#define creal(Val) __TGMATH_UNARY_IMAG_ONLY (Val, creal)
+
+#endif /* tgmath.h */
diff --git a/libm/Makefile b/libm/Makefile
index b0821c82a..80ee30c4d 100644
--- a/libm/Makefile
+++ b/libm/Makefile
@@ -62,7 +62,7 @@ CSRC = e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c\
w_cosh.c w_drem.c w_exp.c w_fmod.c w_gamma.c w_gamma_r.c\
w_hypot.c w_j0.c w_j1.c w_jn.c w_lgamma.c w_lgamma_r.c\
w_log.c w_log10.c w_pow.c w_remainder.c w_scalb.c w_sinh.c\
- w_sqrt.c w_sqrtf.c fpmacros.c
+ w_sqrt.c w_sqrtf.c fpmacros.c nan.c
else
# This list of math functions was taken from POSIX/IEEE 1003.1b-1993
CSRC = w_acos.c w_asin.c s_atan.c w_atan2.c s_ceil.c s_cos.c \
diff --git a/libm/fpmacros.c b/libm/fpmacros.c
index a9f63df4b..3dbc8a13c 100644
--- a/libm/fpmacros.c
+++ b/libm/fpmacros.c
@@ -15,8 +15,8 @@
**
** Change History (most recent first):
**
-** 07 Jul 01 ram First created from fpfloatfunc.c, fp.c,
-** classify.c and sign.c in MathLib v3 Mac OS9.
+** 07 Jul 01 ram First created from fpfloatfunc.c, fp.c,
+** classify.c and sign.c in MathLib v3 Mac OS9.
**
***********************************************************************/
@@ -148,7 +148,7 @@ long int __isnorma ( double x )
Calls: none
***********************************************************************/
-long int __isfinitef ( float x )
+long int __finitef ( float x )
{
union {
unsigned long int lval;
@@ -159,13 +159,56 @@ long int __isfinitef ( float x )
return ((z.lval & FEXP_MASK) != FEXP_MASK);
}
-long int __isfinite ( double x )
+long int __finite ( double x )
{
return ( __fpclassify ( x ) >= FP_ZERO );
}
/***********************************************************************
+ long int __signbitf(float x) returns nonzero if and only if the sign
+ bit of x is set and zero otherwise.
+
+ Exceptions: INVALID is raised if x is a signaling NaN.
+
+ Calls: none
+***********************************************************************/
+
+long int __signbitf ( float x )
+{
+ union {
+ unsigned long int lval;
+ float fval;
+ } z;
+
+ z.fval = x;
+ return ((z.lval & SIGN_MASK) != 0);
+}
+
+
+/***********************************************************************
+ Function sign of a double.
+ Implementation of sign bit for the PowerPC.
+
+ Calls: none
+***********************************************************************/
+
+long int __signbit ( double arg )
+{
+ union
+ {
+ dHexParts hex;
+ double dbl;
+ } x;
+ long int sign;
+
+ x.dbl = arg;
+ sign = ( ( x.hex.high & dSgnMask ) == dSgnMask ) ? 1 : 0;
+ return sign;
+}
+
+
+/***********************************************************************
* long int __isinff(float x) returns -1 if value represents negative
* infinity, 1 if value represents positive infinity,
* and 0 otherwise.
@@ -190,6 +233,17 @@ long int __isinf ( double x )
return 0;
}
+#if 0
+long int __isinfl ( long double x )
+{
+ long int class = __fpclassify(x);
+ if ( class == FP_INFINITE ) {
+ return ( (__signbit(x)) ? -1 : 1);
+ }
+ return 0;
+}
+#endif
+
/***********************************************************************
long int __isnanf(float x) returns nonzero if and only if x is a
NaN and zero otherwise.
@@ -217,47 +271,11 @@ long int __isnan ( double x )
return ( ( class == FP_SNAN ) || ( class == FP_QNAN ) );
}
-
-/***********************************************************************
- long int __signbitf(float x) returns nonzero if and only if the sign
- bit of x is set and zero otherwise.
-
- Exceptions: INVALID is raised if x is a signaling NaN.
-
- Calls: none
-***********************************************************************/
-
-long int __signbitf ( float x )
-{
- union {
- unsigned long int lval;
- float fval;
- } z;
-
- z.fval = x;
- return ((z.lval & SIGN_MASK) != 0);
-}
-
-
-/***********************************************************************
- Function sign of a double.
- Implementation of sign bit for the PowerPC.
-
- Calls: none
-***********************************************************************/
-
-long int __signbit ( double arg )
+#if 0
+long int __isnanl ( long double x )
{
- union
- {
- dHexParts hex;
- double dbl;
- } x;
- long int sign;
-
- x.dbl = arg;
- sign = ( ( x.hex.high & dSgnMask ) == dSgnMask ) ? 1 : 0;
- return sign;
+ long int class = __fpclassify(x);
+ return ( ( class == FP_SNAN ) || ( class == FP_QNAN ) );
}
-
+#endif
diff --git a/libm/nan.c b/libm/nan.c
new file mode 100644
index 000000000..8d7998896
--- /dev/null
+++ b/libm/nan.c
@@ -0,0 +1,48 @@
+/***********************************************************************
+ nan, nanf, nanl - return quiet NaN
+
+ These functions shall return a quiet NaN, if available, with content
+ indicated through tagp.
+
+ If the implementation does not support quiet NaNs, these functions
+ shall return zero.
+
+ Calls: strlen(), sprintf(), strtod()
+
+***********************************************************************/
+#include <math.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+double nan (const char *tagp)
+{
+ if (tagp[0] != '\0') {
+ char buf[6 + strlen (tagp)];
+ sprintf (buf, "NAN(%s)", tagp);
+ return strtod (buf, NULL);
+ }
+ return NAN;
+}
+
+float nanf (const char *tagp)
+{
+ if (tagp[0] != '\0') {
+ char buf[6 + strlen (tagp)];
+ sprintf (buf, "NAN(%s)", tagp);
+ return strtof (buf, NULL);
+ }
+ return NAN;
+}
+
+#if 0
+long double nanl (const char *tagp)
+{
+ if (tagp[0] != '\0') {
+ char buf[6 + strlen (tagp)];
+ sprintf (buf, "NAN(%s)", tagp);
+ return strtold (buf, NULL);
+ }
+ return NAN;
+}
+#endif