conj, conjf, conjl (original) (raw)

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 later

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.

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

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