text: /*
   * Copyright (c) 2021 Frust GmbH
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #ifndef _COMPLEX_HEADERS_H
  #include "complex_headers.h"
  #endif /* _COMPLEX_HEADERS_H */
  
  /****************************************************************************/
  
  #if defined(COMPLEX_SUPPORT)
  
  /****************************************************************************/
  
  double complex
  cproj(double complex z)
  {
     return (isinf(creal(z)) || isinf(cimag(z))) ?
            CMPLX(INFINITY, copysign(0.0, creal(z))) : z;
  }
  
  /****************************************************************************/
  
  #endif /* COMPLEX_SUPPORT */
  