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(* wrapc.def provides access to more of the C library.
Copyright (C) 2001-2023 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 wrapc ;
FROM SYSTEM IMPORT ADDRESS ;
EXPORT QUALIFIED strtime, filesize, fileinode,
getrand, getusername, filemtime,
getnameuidgid, signbit, signbitf, signbitl,
isfinite, isfinitel, isfinitef ;
(*
strtime - returns the C string for the equivalent C asctime
function.
*)
PROCEDURE strtime () : ADDRESS ;
(*
filesize - assigns the size of a file, f, into low, high and
returns zero if successful.
*)
PROCEDURE filesize (f: INTEGER; VAR low, high: CARDINAL) : INTEGER ;
(*
fileinode - return the inode associated with file, f.
*)
PROCEDURE fileinode (f: INTEGER; VAR low, high: CARDINAL) : INTEGER ;
(*
filemtime - returns the mtime of a file, f.
*)
PROCEDURE filemtime (f: INTEGER) : INTEGER ;
(*
getrand - returns a random number between 0..n-1
*)
PROCEDURE getrand (n: INTEGER) : INTEGER ;
(*
getusername - returns a C string describing the current user.
*)
PROCEDURE getusername () : ADDRESS ;
(*
getnameuidgid - fills in the, uid, and, gid, which represents
user, name.
*)
PROCEDURE getnameuidgid (name: ADDRESS; VAR uid, gid: INTEGER) ;
(*
in C these procedure functions are really macros, so we provide
real C functions and let gm2 call these if the builtins
are unavailable.
*)
PROCEDURE signbit (r: REAL) : INTEGER ;
PROCEDURE signbitf (s: SHORTREAL) : INTEGER ;
PROCEDURE signbitl (l: LONGREAL) : INTEGER ;
(*
isfinite - provide non builtin alternative to the gcc builtin isfinite.
Returns 1 if x is finite and 0 if it is not.
*)
PROCEDURE isfinite (x: REAL) : INTEGER ;
(*
isfinitef - provide non builtin alternative to the gcc builtin isfinite.
Returns 1 if x is finite and 0 if it is not.
*)
PROCEDURE isfinitef (x: SHORTREAL) : INTEGER ;
(*
isfinitel - provide non builtin alternative to the gcc builtin isfinite.
Returns 1 if x is finite and 0 if it is not.
*)
PROCEDURE isfinitel (x: LONGREAL) : INTEGER ;
END wrapc.
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