HP-UX Reference (11i v3 07/02) - 3 Library Functions A-M (vol 6)

creal(3M) creal(3M)

(HP Integrity Server Only)

NAME

creal(), crealf(), creall(), crealw(), crealq() - the real part of a complex value

SYNOPSIS

#include <complex.h>

double creal(double complex z);

float crealf(float complex z);

long double creall(long double complex z);

extended crealw(extended complex z);

quad crealq(quad complex z);

DESCRIPTION

These functions are available only for Integrity servers.

creal() returns the real part of z.

crealf() is a float complex version of creal(); it takes a float complex argument and

returns a float result.

creall() is a long double complex version of creal(); it takes a long double complex

argument and returns a long double result.

crealw() is an extended complex version of creal(); it takes an extended complex argu-

ment and returns an extended result.

crealq() is equivalent to creall() on HP-UX systems.

These functions raise no exceptions.

USAGE

To use these functions, compile with the default -Ae option. To use crealw()

or crealq(), compile

with the

-fpwidetypes option. Make sure your program includes <complex.h> . Link in the math

library by specifying -lm on the compiler or linker command line.

ERRORS

No errors are deﬁned.