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/* Prototype declarations for complex math functions;
helper file for <complex.h>.
Copyright (C) 1997-2014 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, see
<http://www.gnu.org/licenses/>. */
/* NOTE: Because of the special way this file is used by <complex.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 use <bits/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));
#ifdef __USE_GNU
/* The base 10 logarithm is not defined by the standard but to implement
the standard C++ library it is handy. */
__MATHCALL (clog10, (_Mdouble_complex_ __z));
#endif
/* 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. Recent GCC handles these as builtin functions so does
not need inlines. */
#if defined __GNUC__ && !__GNUC_PREREQ (2, 97) && defined __OPTIMIZE__ \
&& defined __extern_inline
/* Imaginary part of Z. */
__extern_inline _Mdouble_
__MATH_PRECNAME(cimag) (_Mdouble_complex_ __z) __THROW
{
return __imag__ __z;
}
/* Real part of Z. */
__extern_inline _Mdouble_
__MATH_PRECNAME(creal) (_Mdouble_complex_ __z) __THROW
{
return __real__ __z;
}
/* Complex conjugate of Z. */
__extern_inline _Mdouble_complex_
__MATH_PRECNAME(conj) (_Mdouble_complex_ __z) __THROW
{
return __extension__ ~__z;
}
#endif