cbuild-fcbuild-lcbuild.md

description	title	ms.date	api_name	api_location	api_type	topic_type	f1_keywords	helpviewer_keywords
Learn more about: _Cbuild, _FCbuild, _LCbuild	_Cbuild, _FCbuild, _LCbuild	03/30/2018	_Cbuild _FCbuild _LCbuild	msvcrt.dll msvcr80.dll msvcr90.dll msvcr100.dll msvcr100_clr0400.dll msvcr110.dll msvcr110_clr0400.dll msvcr120.dll msvcr120_clr0400.dll ucrtbase.dll api-ms-win-crt-math-l1-1-0.dll	DLLExport	apiref	_Cbuild _FCbuild _LCbuild complex/_Cbuild complex/_FCbuild complex/_LCbuild	_Cbuild function _FCbuild function _LCbuild function

_Cbuild, _FCbuild, _LCbuild

Constructs a complex number from real and imaginary parts.

Syntax

_Dcomplex_Cbuild( doublereal, doubleimaginary ); _Fcomplex_FCbuild( floatreal, floatimaginary ); _Lcomplex_LCbuild( long doublereal, long doubleimaginary );

Parameters

real
The real part of the complex number to construct.

imaginary
The imaginary part of the complex number to construct.

Return value

A _Dcomplex, _Fcomplex, or _Lcomplex structure that represents the complex number (real, imaginary * i) for values of the specified floating-point type.

Remarks

The _Cbuild, _FCbuild, and _LCbuild functions simplify creation of complex types. Use the creal, crealf, creall and cimag, cimagf, cimagl functions to retrieve the real and imaginary portions of the represented complex numbers.

Requirements

Routine	C header	C++ header
_Cbuild, _FCbuild, _LCbuild	<complex.h>	<ccomplex>

These functions are Microsoft-specific. The types _Dcomplex, _Fcomplex, and _Lcomplex are Microsoft-specific equivalents to the unimplemented C99 native types double _Complex, float _Complex, and long double _Complex, respectively. For more compatibility information, see Compatibility.

See also

Alphabetical function reference
_Cmulcc, _FCmulcc, _LCmulcc
_Cmulcr, _FCmulcr, _LCmulcr
norm, normf, norml
cproj, cprojf, cprojl
conj, conjf, conjl
creal, crealf, creall
cimag, cimagf, cimagl
carg, cargf, cargl
cabs, cabsf, cabsl