153 lines
4.4 KiB
C
153 lines
4.4 KiB
C
/* Prototype declarations for complex math functions;
|
|
helper file for <complex.h>.
|
|
Copyright (C) 1997 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, (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, (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 _COMPLEX_H
|
|
#error "Never include cmathcalls.h directly; include <complex.h> instead."
|
|
#endif
|
|
|
|
#define _Mdouble_complex_ _Mdouble_ complex
|
|
|
|
|
|
/* Trigonometric functions. */
|
|
|
|
/* Arc cosine of Z. */
|
|
__MATHCALL (cacos, (_Mdouble_complex_ __z));
|
|
/* Arc sine of Z. */
|
|
__MATHCALL (casin, (_Mdouble_complex_ __z));
|
|
/* Arc tangent of Z. */
|
|
__MATHCALL (catan, (_Mdouble_complex_ __z));
|
|
|
|
/* Cosine of Z. */
|
|
__MATHCALL (ccos, (_Mdouble_complex_ __z));
|
|
/* Sine of Z. */
|
|
__MATHCALL (csin, (_Mdouble_complex_ __z));
|
|
/* Tangent of Z. */
|
|
__MATHCALL (ctan, (_Mdouble_complex_ __z));
|
|
|
|
|
|
/* Hyperbolic functions. */
|
|
|
|
/* Hyperbolic arc cosine of Z. */
|
|
__MATHCALL (cacosh, (_Mdouble_complex_ __z));
|
|
/* Hyperbolic arc sine of Z. */
|
|
__MATHCALL (casinh, (_Mdouble_complex_ __z));
|
|
/* Hyperbolic arc tangent of Z. */
|
|
__MATHCALL (catanh, (_Mdouble_complex_ __z));
|
|
|
|
/* Hyperbolic cosine of Z. */
|
|
__MATHCALL (ccosh, (_Mdouble_complex_ __z));
|
|
/* Hyperbolic sine of Z. */
|
|
__MATHCALL (csinh, (_Mdouble_complex_ __z));
|
|
/* Hyperbolic tangent of Z. */
|
|
__MATHCALL (ctanh, (_Mdouble_complex_ __z));
|
|
|
|
|
|
/* Exponential and logarithmic functions. */
|
|
|
|
/* Exponential function of Z. */
|
|
__MATHCALL (cexp, (_Mdouble_complex_ __z));
|
|
|
|
/* Natural logarithm of Z. */
|
|
__MATHCALL (clog, (_Mdouble_complex_ __z));
|
|
|
|
|
|
/* Power functions. */
|
|
|
|
/* Return X to the Y power. */
|
|
__MATHCALL (cpow, (_Mdouble_complex_ __x, _Mdouble_complex_ __y));
|
|
|
|
/* Return the square root of Z. */
|
|
__MATHCALL (csqrt, (_Mdouble_complex_ __z));
|
|
|
|
|
|
/* Absolute value, conjugates, and projection. */
|
|
|
|
/* Absolute value of Z. */
|
|
__MATHDECL (_Mdouble_,cabs, (_Mdouble_complex_ __z));
|
|
|
|
/* Argument value of Z. */
|
|
__MATHDECL (_Mdouble_,carg, (_Mdouble_complex_ __z));
|
|
|
|
/* Complex conjugate of Z. */
|
|
__MATHCALL (conj, (_Mdouble_complex_ __z));
|
|
|
|
/* Projection of Z onto the Riemann sphere. */
|
|
__MATHCALL (cproj, (_Mdouble_complex_ __z));
|
|
|
|
|
|
/* Decomposing complex values. */
|
|
|
|
/* Imaginary part of Z. */
|
|
__MATHDECL (_Mdouble_,cimag, (_Mdouble_complex_ __z));
|
|
|
|
/* Real part of Z. */
|
|
__MATHDECL (_Mdouble_,creal, (_Mdouble_complex_ __z));
|
|
|
|
|
|
/* Now some optimized versions. GCC has handy notations for these
|
|
functions. */
|
|
#if defined __GNUC__ && defined __OPTIMIZE__
|
|
|
|
/* Imaginary part of Z. */
|
|
extern __inline _Mdouble_
|
|
__MATH_PRECNAME(cimag) (_Mdouble_complex_ __z)
|
|
{
|
|
return __imag__ __z;
|
|
}
|
|
|
|
/* Real part of Z. */
|
|
extern __inline _Mdouble_
|
|
__MATH_PRECNAME(creal) (_Mdouble_complex_ __z)
|
|
{
|
|
return __real__ __z;
|
|
}
|
|
|
|
/* Complex conjugate of Z. */
|
|
extern __inline _Mdouble_complex_
|
|
__MATH_PRECNAME(conj) (_Mdouble_complex_ __z)
|
|
{
|
|
return ~__z;
|
|
}
|
|
|
|
#endif
|