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glibc/math/mathcalls.h
Ulrich Drepper 6d52618b15 Update from main archive 961219 
Thu Dec 19 23:28:33 1996  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/resolv.h: Update from BIND 4.9.5-P1.
	* resolv/res_comp.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* resolv/Banner: Update version number.

Thu Dec 19 20:58:53 1996  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dlfcn.h: Add extern "C" wrapper.

	* io/utime.h: Don't define NULL since this isn't allowed in POSIX.
	* io/sys/stat.h: Declare `lstat' only if __USE_BSD ||
	__USE_XOPEN_EXTENDED.
	* locale/locale.h: Define NULL.
	* math/math.c: Don't include <errno.h> to define math errors.
	* stdlib/stdlib.h: Likewise.
	* posix/unistd.h: Don't declare environ.
	* posix/sys/utsname.h (struct utsname): Declare member domainname
	as __domainname is !__USE_GNU.
	* signal/signal.h: Declare size_t only if __USE_BSD ||
	__USE_XOPEN_EXTENDED.
	* stdio/stdio.h: Don't declare cuserid when __USE_POSIX, but
	instead when __USE_XOPEN.
	* string/string.h: Define strndup only if __USE_GNU.
	* sysdeps/unix/sysv/linux/clock.c: New file.
	* sysdeps/unix/sysv/linux/timebits.h: Define CLOCKS_PER_SEC as
	1000000 per X/Open standard.
	* features.h: Add code to recognize _POSIX_C_SOURCE value 199309.
	Define __USE_POSIX199309.
	* posix/unistd.h: Declare fdatasync only if __USE_POSIX199309.
	* time/time.c: Declare nanosleep only if __USE_POSIX199309.
	Patches by Rüdiger Helsch <rh@unifix.de>.

	* locale/locale.h: Add declaration of newlocale and freelocale.

	* new-malloc/Makefile (distibute): Add mtrace.awk.
	(dist-routines): Add mcheck and mtrace.
	(install-lib, non-lib.a): Define as libmcheck.a.
	* new-malloc/malloc.h: Add declaration of __malloc_initialized.
	* new-malloc/mcheck.c: New file.
	* new-malloc/mcheck.h: New file.
	* new-malloc/mtrace.c: New file.
	* new-malloc/mtrace.awk: New file.

	* posix/unistd.h: Correct prototype for usleep.
	* sysdeps/unix/bsd/usleep.c: De-ANSI-declfy.  Correct return type.
	* sysdeps/unix/sysv/linux/usleep.c: Real implementation based on
	nanosleep.

	* signal/signal.h: Change protoype of __sigpause to take two
	arguments.  Remove prototype for sigpause.  Add two different
	macros named sigpause selected when __USE_BSD or __USE_XOPEN
	are defined.  This is necessary since the old BSD definition
	of theis function collides with the X/Open definition.
	* sysdeps/posix/sigpause.c: Change function definition to also
	fit X/Open definition.

	* sysdeps/libm-i387/e_exp.S: Make sure stack is empty when the
	function is left.
	* sysdeps/libm-i387/e_expl.S: Likewise.
	Patch by HJ Lu.

1996-12-17  Paul Eggert  <eggert@twinsun.com>

	* many, many files: Spelling corrections.
	* catgets/catgetsinfo.h (mmapped):
	Renamed from mmaped (in struct catalog_info.status).
	* mach/err_kern.sub (err_codes_unix), string/stratcliff.c (main):
	Fix spelling in message.
	* po/libc.pot: Fix spelling in message for `zic'; this anticipates
	a fix in the tzcode distribution.

Wed Dec 18 15:48:02 1996  Ulrich Drepper  <drepper@cygnus.com>

	* time/strftime.c: Implement ^ flag to cause output be converted
	to use upper case characters.

	* time/zic.c: Update from ADO tzcode1996n.

Wed Dec 18 14:29:24 1996  Erik Naggum  <erik@naggum.no>

	* time/strftime.c (add): Don't change global `i' until all is over.
	Define NULL is not already defined.

Tue Dec 17 09:49:03 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/iovsprintf.c (_IO_vsprintf): Change `&sf' to `&sf._sbf._f'
	to avoid the need for a cast.
	* libio/iovsscanf.c (_IO_vsscanf): Likewise.

	* sunrpc/rpc/xdr.h: Add prototype for xdr_free.
1996-12-20 01:39:50 +00:00

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/* Prototype declarations for math functions; helper file for <math.h>.
Copyright (C) 1996 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* NOTE: Because of the special way this file is used by <math.h>, this
file must NOT be protected from multiple inclusion as header files
usually are.
This file provides prototype declarations for the math functions.
Most functions are declared using the macro:
__MATHCALL (NAME,[_r], (ARGS...));
This means there is a function `NAME' returning `double' and a function
`NAMEf' returning `float'. Each place `_Mdouble_' appears in the
prototype, that is actually `double' in the prototype for `NAME' and
`float' in the prototype for `NAMEf'. Reentrant variant functions are
called `NAME_r' and `NAMEf_r'.
Functions returning other types like `int' are declared using the macro:
__MATHDECL (TYPE, NAME,[_r], (ARGS...));
This is just like __MATHCALL but for a function returning `TYPE'
instead of `_Mdouble_'. In all of these cases, there is still
both a `NAME' and a `NAMEf' that takes `float' arguments. */
#ifndef _MATH_H
#error "Never include mathcalls.h directly; include <math.h> instead."
#endif
/* Trigonometric functions. */
/* Arc cosine of X. */
__MATHCALL (acos,, (_Mdouble_ __x));
/* Arc sine of X. */
__MATHCALL (asin,, (_Mdouble_ __x));
/* Arc tangent of X. */
__MATHCALL (atan,, (_Mdouble_ __x));
/* Arc tangent of Y/X. */
__MATHCALL (atan2,, (_Mdouble_ __y, _Mdouble_ __x));
/* Cosine of X. */
__MATHCALL (cos,, (_Mdouble_ __x));
/* Sine of X. */
__MATHCALL (sin,, (_Mdouble_ __x));
/* Tangent of X. */
__MATHCALL (tan,, (_Mdouble_ __x));
/* Hyperbolic functions. */
/* Hyperbolic cosine of X. */
__MATHCALL (cosh,, (_Mdouble_ __x));
/* Hyperbolic sine of X. */
__MATHCALL (sinh,, (_Mdouble_ __x));
/* Hyperbolic tangent of X. */
__MATHCALL (tanh,, (_Mdouble_ __x));
#if defined(__USE_MISC) || defined(__USE_XOPEN_EXTENDED)
/* Hyperbolic arc cosine of X. */
__MATHCALL (acosh,, (_Mdouble_ __x));
/* Hyperbolic arc sine of X. */
__MATHCALL (asinh,, (_Mdouble_ __x));
/* Hyperbolic arc tangent of X. */
__MATHCALL (atanh,, (_Mdouble_ __x));
#endif
/* Exponential and logarithmic functions. */
/* Exponential function of X. */
__MATHCALL (exp,, (_Mdouble_ __x));
/* Break VALUE into a normalized fraction and an integral power of 2. */
__MATHCALL (frexp,, (_Mdouble_ __x, int *__exponent));
/* X times (two to the EXP power). */
__MATHCALL (ldexp,, (_Mdouble_ __x, int __exponent));
/* Natural logarithm of X. */
__MATHCALL (log,, (_Mdouble_ __x));
/* Base-ten logarithm of X. */
__MATHCALL (log10,, (_Mdouble_ __x));
#if defined(__USE_MISC) || defined(__USE_XOPEN_EXTENDED)
/* Return exp(X) - 1. */
__MATHCALL (expm1,, (_Mdouble_ __x));
/* Return log(1 + X). */
__MATHCALL (log1p,, (_Mdouble_ __x));
/* Return the base 2 signed integral exponent of X. */
__MATHCALL (logb,, (_Mdouble_ __x));
#endif
/* Break VALUE into integral and fractional parts. */
__MATHCALL (modf,, (_Mdouble_ __x, _Mdouble_ *__iptr));
/* Power functions. */
/* Return X to the Y power. */
__MATHCALL (pow,, (_Mdouble_ __x, _Mdouble_ __y));
/* Return the square root of X. */
__MATHCALL (sqrt,, (_Mdouble_ __x));
#if defined(__USE_MISC) || defined(__USE_XOPEN_EXTENDED)
/* Return the cube root of X. */
__MATHCALL (cbrt,, (_Mdouble_ __x));
#endif
/* Nearest integer, absolute value, and remainder functions. */
/* Smallest integral value not less than X. */
__MATHCALL (ceil,, (_Mdouble_ __x));
/* Absolute value of X. */
__MATHCALL (fabs,, (_Mdouble_ __x));
/* Largest integer not greater than X. */
__MATHCALL (floor,, (_Mdouble_ __x));
/* Floating-point modulo remainder of X/Y. */
__MATHCALL (fmod,, (_Mdouble_ __x, _Mdouble_ __y));
#ifdef __USE_MISC
/* Return 0 if VALUE is finite or NaN, +1 if it
is +Infinity, -1 if it is -Infinity. */
__MATHDECL (int, isinf,, (_Mdouble_ __value));
/* Return nonzero if VALUE is finite and not NaN. */
__MATHDECL (int, finite,, (_Mdouble_ __value));
/* Deal with an infinite or NaN result.
If ERROR is ERANGE, result is +Inf;
if ERROR is - ERANGE, result is -Inf;
otherwise result is NaN.
This will set `errno' to either ERANGE or EDOM,
and may return an infinity or NaN, or may do something else. */
__MATHCALL (infnan,, (int __error));
/* Return X with its signed changed to Y's. */
__MATHCALL (copysign,, (_Mdouble_ __x, _Mdouble_ __y));
/* Return X times (2 to the Nth power). */
__MATHCALL (scalbn,, (_Mdouble_ __x, int __n));
/* Return the remainder of X/Y. */
__MATHCALL (drem,, (_Mdouble_ __x, _Mdouble_ __y));
struct __MATH_PRECNAME(__cabs_complex,)
{
_Mdouble_ x, y;
};
/* Return `sqrt(X*X + Y*Y)'. */
__MATHCALL (cabs,, (struct __MATH_PRECNAME(__cabs_complex,)));
/* Return the fractional part of X after dividing out `ilogb (X)'. */
__MATHCALL (significand,, (_Mdouble_ __x));
#endif /* Use misc. */
#if defined(__USE_MISC) || defined(__USE_XOPEN)
/* Return nonzero if VALUE is not a number. */
__MATHDECL (int, isnan,, (_Mdouble_ __value));
/* Return the binary exponent of X, which must be nonzero. */
__MATHDECL (int, ilogb,, (_Mdouble_ __x));
/* Return `sqrt(X*X + Y*Y)'. */
__MATHCALL (hypot,, (_Mdouble_ __x, _Mdouble_ __y));
/* Error, gamma, and Bessel functions. */
__MATHCALL (erf,, (_Mdouble_));
__MATHCALL (erfc,, (_Mdouble_));
__MATHCALL (gamma,, (_Mdouble_));
__MATHCALL (j0,, (_Mdouble_));
__MATHCALL (j1,, (_Mdouble_));
__MATHCALL (jn,, (int, _Mdouble_));
__MATHCALL (lgamma,, (_Mdouble_));
__MATHCALL (y0,, (_Mdouble_));
__MATHCALL (y1,, (_Mdouble_));
__MATHCALL (yn,, (int, _Mdouble_));
/* This variable is used by `gamma' and `lgamma'. */
extern int signgam;
#ifdef __USE_REENTRANT
/* Reentrant versions of gamma and lgamma. Those functions use the global
variable `signgam'. The reentrant versions instead take a pointer and
store the value through it. */
__MATHCALL (gamma,_r, (_Mdouble_, int *));
__MATHCALL (lgamma,_r, (_Mdouble_, int *));
#endif
#if defined(__USE_MISC) || defined(__USE_XOPEN_EXTENDED)
/* Return the integer nearest X in the direction of the
prevailing rounding mode. */
__MATHCALL (rint,, (_Mdouble_ __x));
/* Return X times (2 to the Nth power). */
__MATHCALL (scalb,, (_Mdouble_ __x, _Mdouble_ __n));
/* Return X + epsilon if X < Y, X - epsilon if X > Y. */
__MATHCALL (nextafter,, (_Mdouble_ __x, _Mdouble_ __y));
/* Return the remainder of integer divison X / Y with infinite precision. */
__MATHCALL (remainder,, (_Mdouble_ __x, _Mdouble_ __y));
#endif
#endif /* Use misc. */
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