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[thirdparty/gcc.git] / gcc / m2 / gm2-libs / dtoa.def

(* dtoa.def provides routines to convert between a C double.

Copyright (C) 2008-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.

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 Software Foundation; either version 3, or (at your option)
any later version.

GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  *)

DEFINITION MODULE dtoa ;

FROM SYSTEM IMPORT ADDRESS ;

TYPE
   Mode = (maxsignificant, decimaldigits) ;


(*
   strtod - returns a REAL given a string, s.  It will set
            error to TRUE if the number is too large.
*)

PROCEDURE strtod (s: ADDRESS; VAR error: BOOLEAN) : REAL ;


(*
   dtoa - converts a REAL, d, into a string.  The address of the
          string is returned.
          mode       indicates the type of conversion required.
          ndigits    determines the number of digits according to mode.
          decpt      the position of the decimal point.
          sign       does the string have a sign?
*)

PROCEDURE dtoa (d        : REAL;
                mode     : Mode;
                ndigits  : INTEGER;
	        VAR decpt: INTEGER;
	        VAR sign : BOOLEAN) : ADDRESS ;


END dtoa.