gcc/m2/gm2-libs-iso/ConvStringReal.def

   1 (* ConvStringReal.def translate floating point numbers to Strings.
   2
   3 Copyright (C) 2009-2024 Free Software Foundation, Inc.
   4 Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
   5
   6 This file is part of GNU Modula-2.
   7
   8 GNU Modula-2 is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GNU Modula-2 is distributed in the hope that it will be useful, but
  14 WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 General Public License for more details.
  17
  18 Under Section 7 of GPL version 3, you are granted additional
  19 permissions described in the GCC Runtime Library Exception, version
  20 3.1, as published by the Free Software Foundation.
  21
  22 You should have received a copy of the GNU General Public License and
  23 a copy of the GCC Runtime Library Exception along with this program;
  24 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  25 <http://www.gnu.org/licenses/>.  *)
  26
  27 DEFINITION MODULE ConvStringReal ;
  28
  29 FROM DynamicStrings IMPORT String ;
  30
  31
  32 (*
  33    RealToFloatString - converts a real with, sigFigs, into a string
  34                        and returns the result as a string.
  35 *)
  36
  37 PROCEDURE RealToFloatString (real: REAL; sigFigs: CARDINAL) : String ;
  38
  39
  40 (*
  41    RealToEngString - converts the value of real to floating-point
  42                      string form, with sigFigs significant figures.
  43                      The number is scaled with one to three digits
  44                      in the whole number part and with an exponent
  45                      that is a multiple of three.
  46 *)
  47
  48 PROCEDURE RealToEngString (real: REAL; sigFigs: CARDINAL) : String ;
  49
  50
  51 (*
  52    RealToFixedString - returns the number of characters in the fixed-point
  53                        string representation of real rounded to the given
  54                        place relative to the decimal point.
  55 *)
  56
  57 PROCEDURE RealToFixedString (real: REAL; place: INTEGER) : String ;
  58
  59
  60 END ConvStringReal.