Last change
on this file since 445 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.1 KB
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1 | /* $NetBSD: conj.c,v 1.2 2010/09/15 16:11:29 christos Exp $ */ |
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2 | |
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3 | /* |
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4 | * Written by Matthias Drochner <drochner@NetBSD.org>. |
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5 | * Public domain. |
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6 | * |
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7 | * imported and modified include for newlib 2010/10/03 |
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8 | * Marco Atzeri <marco_atzeri@yahoo.it> |
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9 | */ |
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10 | |
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11 | /* |
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12 | FUNCTION |
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13 | <<conj>>, <<conjf>>---complex conjugate |
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14 | |
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15 | INDEX |
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16 | conj |
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17 | INDEX |
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18 | conjf |
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19 | |
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20 | SYNOPSIS |
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21 | #include <complex.h> |
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22 | double complex conj(double complex <[z]>); |
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23 | float complex conjf(float complex <[z]>); |
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24 | |
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25 | |
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26 | DESCRIPTION |
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27 | These functions compute the complex conjugate of <[z]>, |
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28 | by reversing the sign of its imaginary part. |
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29 | |
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30 | <<conjf>> is identical to <<conj>>, except that it performs |
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31 | its calculations on <<floats complex>>. |
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32 | |
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33 | RETURNS |
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34 | The conj functions return the complex conjugate value. |
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35 | |
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36 | PORTABILITY |
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37 | <<conj>> and <<conjf>> are ISO C99 |
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38 | |
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39 | QUICKREF |
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40 | <<conj>> and <<conjf>> are ISO C99 |
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41 | |
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42 | */ |
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43 | |
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44 | #include <complex.h> |
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45 | #include "../common/fdlibm.h" |
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46 | |
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47 | double complex |
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48 | conj(double complex z) |
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49 | { |
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50 | double_complex w = { .z = z }; |
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51 | |
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52 | IMAG_PART(w) = -IMAG_PART(w); |
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53 | |
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54 | return (w.z); |
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55 | } |
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