gcc/testsuite/gm2/complex/run/pass/arith5.mod

(* Copyright (C) 2009 Free Software Foundation, Inc. *)
(* This file is part of GNU Modula-2.

GNU Modula-2 is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
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GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
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for more details.

You should have received a copy of the GNU General Public License along
with gm2; see the file COPYING.  If not, write to the Free Software
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MODULE arith5 ;

FROM libc IMPORT printf ;
FROM M2RTS IMPORT Halt ;

CONST
   i    = CMPLX (0.0, 1.0) ;
   one  = CMPLX (1.0, 0.0) ;
   two  = CMPLX (2.0, 0.0) ;
   zero = CMPLX (0.0, 0.0) ;
   three= CMPLX (3.0, 0.0) ;
   foo  = CMPLX (4.0, 1.0) ;


PROCEDURE Assert (b: BOOLEAN; l: CARDINAL) ;
BEGIN
   IF NOT b
   THEN
      Halt ('failure', __FILE__, __FUNCTION__, l)
   END
END Assert ;

PROCEDURE getOne () : LONGCOMPLEX ;
BEGIN
   RETURN one
END getOne ;

VAR
   a, b, c, d: LONGCOMPLEX ;
BEGIN
   a := i ;
   b := a*getOne() ;
   c := i*i ;
   d := -one ;

   Assert(c=-one, __LINE__) ;

   Assert(c=d, __LINE__) ;

   printf("RE(foo) = %Lg\n", RE(foo)) ;
   printf("IM(foo) = %Lg\n", IM(foo)) ;

   printf("RE(i*i) = %Lg\n", RE(i*i)) ;
   printf("IM(i*i) = %Lg\n", IM(i*i)) ;

   printf("RE(-one) = %Lg\n", RE(-one)) ;
   printf("IM(-one) = %Lg\n", IM(-one)) ;

   Assert(i*i=-one, __LINE__)
END arith5.