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conj, conjf, conjl

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Retrieves the complex conjugate of a complex number.

Syntax

_Dcomplex conj(
   _Dcomplex z
);
_Fcomplex conj(
   _Fcomplex z
);  // C++ only
_Lcomplex conj(
   _Lcomplex z
);  // C++ only
_Fcomplex conjf(
   _Fcomplex z
);
_Lcomplex conjl(
   _Lcomplex z
);
#define conj(X) // Requires C11 or higher

Parameters

z
A complex number.

Return value

The complex conjugate of z. The result has the same real and imaginary part as z, but with the opposite sign.

Remarks

Because C++ allows overloading, you can call overloads of conj that take and return _Fcomplex and _Lcomplex values. In a C program, unless you're using the <tgmath.h> macro to call this function, conj always takes and returns a _Dcomplex value.

If you use the <tgmath.h> conj() macro, the type of the argument determines which version of the function is selected. See Type-generic math for details.

Requirements

Routine C header C++ header
conj, conjf, conjl <complex.h> <ccomplex>
conj macro <tgmath.h>

For more compatibility information, see Compatibility.

See also

Alphabetical function reference
norm, normf, norml
creal, crealf, creall
cproj, cprojf, cprojl
cimag, cimagf, cimagl
carg, cargf, cargl
cabs, cabsf, cabsl