Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
More options
HP.com home
HP-UX Reference > C


HP Integrity Server Only
HP-UX 11i Version 3: February 2007

Technical documentation

» Feedback
Content starts here

 » Table of Contents

 » Index


cimag(), cimagf(), cimagl(), cimagw(), cimagq() — the imaginary part of a complex value


#include <complex.h>

double cimag(double complex z);

float cimagf(float complex z);

long double cimagl(long double complex z);

extended cimagw(extended complex z);

quad cimagq(quad complex z);


These functions are available only for Integrity servers.

cimag() returns the imaginary part of z (as a real).

cimagf() is a float complex version of cimag(); it takes a float complex argument and returns a float result.

cimagl() is a long double complex version of cimag(); it takes a long double complex argument and returns a long double result.

cimagw() is an extended complex version of cimag(); it takes an extended complex argument and returns an extended result.

cimagq() is equivalent to cimagl() on HP-UX systems.

These functions raise no floating-point exceptions.


To use these functions, compile with the default -Ae option. To use cimagw() or cimagq(), 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.


No errors are defined.


cimag(), cimagf(), cimagl() : ISO/IEC C99 (including Annex G, ``IEC 60559-compatible complex arithmetic'')

Printable version
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 1983-2007 Hewlett-Packard Development Company, L.P.