1*411564dcSmaya.\" $NetBSD: creal.3,v 1.5 2017/09/27 09:20:27 maya Exp $ 2c7a43da6Sdrochner.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 3*411564dcSmaya.Dd September 27, 2017 4aea943bcSwiz.Dt CREAL 3 5aea943bcSwiz.Os 6aea943bcSwiz.Sh NAME 7aea943bcSwiz.Nm creal , 8aea943bcSwiz.Nm crealf , 9aea943bcSwiz.Nm creall 10aea943bcSwiz.Nd complex real functions 11aea943bcSwiz.Sh SYNOPSIS 12aea943bcSwiz.In complex.h 13aea943bcSwiz.Ft double 14aea943bcSwiz.Fn creal "double complex z" 15aea943bcSwiz.Ft float 16aea943bcSwiz.Fn crealf "float complex z" 17aea943bcSwiz.Ft long double 18aea943bcSwiz.Fn creall "long double complex z" 19*411564dcSmaya.In tgmath.h 20*411564dcSmaya.Ft complex-float 21*411564dcSmaya.Fn creal "complex-float z" 22aea943bcSwiz.Sh DESCRIPTION 23aea943bcSwizThese functions compute the real part of 24aea943bcSwiz.Ar z . 25aea943bcSwiz.Sh RETURN VALUES 26c7a43da6SdrochnerThese functions return the real part value. 27aea943bcSwiz.Sh ERRORS 28c7a43da6SdrochnerNo errors are defined. 29aea943bcSwiz.Sh APPLICATION USAGE 30aea943bcSwizFor a variable 31aea943bcSwiz.Ar z 32aea943bcSwizof type 33aea943bcSwiz.Vt complex : 34aea943bcSwiz.Bd -literal -offset indent 35aea943bcSwizz == creal(z) + cimag(z)*I 36aea943bcSwiz.Ed 37aea943bcSwiz.Sh SEE ALSO 38aea943bcSwiz.Xr carg 3 , 39aea943bcSwiz.Xr cimag 3 , 40aea943bcSwiz.Xr conj 3 , 41aea943bcSwiz.Xr cproj 3 , 42aea943bcSwiz.St -p1003.1-2001 43aea943bcSwiz.Aq Pa complex.h 44aea943bcSwiz.Sh COPYRIGHT 45c7a43da6SdrochnerPortions of this text are reprinted and reproduced in electronic form 46c7a43da6Sdrochnerfrom IEEE Std 1003.1, 2003 Edition, Standard for Information Technology 47c7a43da6Sdrochner-- Portable Operating System Interface (POSIX), The Open Group Base 48c7a43da6SdrochnerSpecifications Issue 6, Copyright (C) 2001-2003 by the Institute of 49aea943bcSwizElectrical and Electronics Engineers, Inc and The Open Group. 50aea943bcSwizIn the 51c7a43da6Sdrochnerevent of any discrepancy between this version and the original IEEE and 52c7a43da6SdrochnerThe Open Group Standard, the original IEEE and The Open Group Standard 53aea943bcSwizis the referee document. 54aea943bcSwizThe original Standard can be obtained online at 55c7a43da6Sdrochnerhttp://www.opengroup.org/unix/online.html . 56