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(cimagl): Add prototype. (creall): Add prototype. * libc/include/ieeefp.h: Include float.h. (EXT_EXPBITS, EXT_FRACHBITS, EXT_FRACLBITS) (EXT_EXP_INFNAN. EXT_EXP_BIAS, EXT_FRACBITS): Define. (struct ieee_ext, union ieee_ext_u): New types for long double support. * libc/include/math.h (finitel): Add prototype. (hypotl): Add prototype. (sqrtl): Add prototype. * libm/common/Makefile.am (lsrc): Add sl_finite.c. * libm/common/Makefile.in: Regenerate. * libm/common/fdlibm.h (__ieee754_hypotl): Add prototype. * libm/common/hypotl.c (hypotl): Add implementation for when long double is larger than double. * libm/common/sqrtl.c (sqrtl): Likewise. * libm/common/sl_finite.c: New file. Adds implementation of the finitel function. * libm/complex/Makefile.am (lsrc): Define. (libcomplex_la_SOURCES): Add lsrc. (lib_a_SOURCES): Add lsrc. * libm/complex/Makefile.in: Regenerate. * libm/complex/cabs.c: Add documentation of cabsl function. * libm/complex/cimag.c: Add documentation of cimagl function. * libm/complex/creall.c: Add documentation of creall function. * libm/complex/cabsl.c: New file. Adds implementation of the cabsl function. * libm/complex/cimagl.c: New file. Adds implementation of the cimagl function. * libm/complex/creall.c: New file. Adds implementation of the creall function. * libm/math/Makefile.am (lsrc): Define. (libmath_la_SOURCES): Add lsrc. (lib_a_SOURCES): Add lsrc. * libm/math/Makefile.in: Regenerate. * libm/math/el_hypot.c: New file. Adds implementation of the __ieee754_hypotl function.
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/* $NetBSD: cabs.c,v 1.1 2007/08/20 16:01:30 drochner Exp $ */
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/*
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* Written by Matthias Drochner <drochner@NetBSD.org>.
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* Public domain.
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*
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* imported and modified include for newlib 2010/10/03
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* Marco Atzeri <marco_atzeri@yahoo.it>
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*/
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/*
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FUNCTION
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<<cabs>>, <<cabsf>>, <<cabsl>>---complex absolute-value
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INDEX
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cabs
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INDEX
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cabsf
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INDEX
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cabsl
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ANSI_SYNOPSIS
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#include <complex.h>
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double cabs(double complex <[z]>);
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float cabsf(float complex <[z]>);
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long double cabsl(long double complex <[z]>);
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DESCRIPTION
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These functions compute compute the complex absolute value
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(also called norm, modulus, or magnitude) of <[z]>.
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<<cabsf>> is identical to <<cabs>>, except that it performs
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its calculations on <<float complex>>.
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<<cabsl>> is identical to <<cabs>>, except that it performs
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its calculations on <<long double complex>>.
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RETURNS
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The cabs* functions return the complex absolute value.
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PORTABILITY
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<<cabs>>, <<cabsf>> and <<cabsl>> are ISO C99
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QUICKREF
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<<cabs>>, <<cabsf>> and <<cabsl>> are ISO C99
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*/
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#include <complex.h>
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#include <math.h>
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double
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cabs(double complex z)
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{
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return hypot( creal(z), cimag(z) );
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}
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