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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- I N T E R F A C E S . F O R T R A N --
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6 -- --
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7 -- B o d y --
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8 -- --
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9 -- Copyright (C) 1992-2017, Free Software Foundation, Inc. --
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- You should have received a copy of the GNU General Public License and --
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23 -- a copy of the GCC Runtime Library Exception along with this program; --
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24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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25 -- <http://www.gnu.org/licenses/>. --
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26 -- --
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27 -- GNAT was originally developed by the GNAT team at New York University. --
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28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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29 -- --
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30 ------------------------------------------------------------------------------
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31
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32 package body Interfaces.Fortran is
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33
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34 ------------
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35 -- To_Ada --
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36 ------------
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37
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38 -- Single character case
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39
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40 function To_Ada (Item : Character_Set) return Character is
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41 begin
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42 return Character (Item);
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43 end To_Ada;
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44
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45 -- String case (function returning converted result)
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46
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47 function To_Ada (Item : Fortran_Character) return String is
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48 T : String (1 .. Item'Length);
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49
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50 begin
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51 for J in T'Range loop
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52 T (J) := Character (Item (J - 1 + Item'First));
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53 end loop;
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54
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55 return T;
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56 end To_Ada;
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57
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58 -- String case (procedure copying converted string to given buffer)
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59
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60 procedure To_Ada
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61 (Item : Fortran_Character;
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62 Target : out String;
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63 Last : out Natural)
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64 is
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65 begin
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66 if Item'Length = 0 then
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67 Last := 0;
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68 return;
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69
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70 elsif Target'Length = 0 then
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71 raise Constraint_Error;
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72
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73 else
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74 Last := Target'First - 1;
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75
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76 for J in Item'Range loop
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77 Last := Last + 1;
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78
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79 if Last > Target'Last then
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80 raise Constraint_Error;
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81 else
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82 Target (Last) := Character (Item (J));
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83 end if;
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84 end loop;
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85 end if;
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86 end To_Ada;
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87
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88 ----------------
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89 -- To_Fortran --
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90 ----------------
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91
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92 -- Character case
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93
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94 function To_Fortran (Item : Character) return Character_Set is
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95 begin
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96 return Character_Set (Item);
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97 end To_Fortran;
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98
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99 -- String case (function returning converted result)
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100
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101 function To_Fortran (Item : String) return Fortran_Character is
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102 T : Fortran_Character (1 .. Item'Length);
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103
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104 begin
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105 for J in T'Range loop
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106 T (J) := Character_Set (Item (J - 1 + Item'First));
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107 end loop;
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108
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109 return T;
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110 end To_Fortran;
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111
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112 -- String case (procedure copying converted string to given buffer)
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113
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114 procedure To_Fortran
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115 (Item : String;
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116 Target : out Fortran_Character;
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117 Last : out Natural)
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118 is
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119 begin
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120 if Item'Length = 0 then
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121 Last := 0;
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122 return;
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123
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124 elsif Target'Length = 0 then
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125 raise Constraint_Error;
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126
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127 else
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128 Last := Target'First - 1;
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129
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130 for J in Item'Range loop
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131 Last := Last + 1;
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132
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133 if Last > Target'Last then
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134 raise Constraint_Error;
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135 else
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136 Target (Last) := Character_Set (Item (J));
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137 end if;
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138 end loop;
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139 end if;
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140 end To_Fortran;
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141
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142 end Interfaces.Fortran;
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