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/*
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Crown Copyright (c) 1997
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This TenDRA(r) Computer Program is subject to Copyright
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owned by the United Kingdom Secretary of State for Defence
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acting through the Defence Evaluation and Research Agency
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(DERA). It is made available to Recipients with a
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royalty-free licence for its use, reproduction, transfer
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to other parties and amendment for any purpose not excluding
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product development provided that any such use et cetera
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shall be deemed to be acceptance of the following conditions:-
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(1) Its Recipients shall ensure that this Notice is
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reproduced upon any copies or amended versions of it;
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(2) Any amended version of it shall be clearly marked to
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show both the nature of and the organisation responsible
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for the relevant amendment or amendments;
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(3) Its onward transfer from a recipient to another
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party shall be deemed to be that party's acceptance of
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these conditions;
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(4) DERA gives no warranty or assurance as to its
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quality or suitability for any purpose and DERA accepts
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no liability whatsoever in relation to any use to which
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it may be put.
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*/
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#include "implement.h"
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/*
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SYSTEM ATEXIT FUNCTION
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The macro sys_atexit calls the system atexit function. The macro
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FS_ATEXIT may be defined on machines where atexit is not defined.
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*/
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#ifndef FS_ATEXIT
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#define FS_ATEXIT 0
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#endif
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#if ( FS_ATEXIT == 1 )
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extern "C" int on_exit ( EXITER, char * ) ;
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#define sys_atexit( X ) ( on_exit ) ( X, NULL )
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#else
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#define sys_atexit( X ) ( atexit ) ( X )
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#endif
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/*
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LIST OF TERMINATION FUNCTIONS
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This list represents all the termination functions which are to be
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called at the end of a program.
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*/
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DTOR_LIST *__TCPPLUS_dtors = 0 ;
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/*
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CALL ALL TERMINATION FUNCTIONS
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This routine scans down the list of all termination functions calling
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each in turn.
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*/
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void __TCPPLUS_term ()
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{
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DTOR_LIST *p = __TCPPLUS_dtors ;
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__TCPPLUS_dtors = 0 ;
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while ( p ) {
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CLASS *q = p->arg ;
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if ( q ) {
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// Destructor call
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p->func ( q, 2 ) ;
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} else {
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// atexit function call
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( ( EXITER ) p->func ) () ;
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}
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p = p->next ;
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}
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return ;
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}
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/*
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INITIALISE TERMINATION FUNCTIONS
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This routine uses the system atexit to register the function
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__TCPPLUS_term as being called at the end of the program.
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*/
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void __TCPPLUS_init ()
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{
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static int started = 0 ;
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if ( !started ) {
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sys_atexit ( __TCPPLUS_term ) ;
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started = 1 ;
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}
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return ;
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}
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/*
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REPLACEMENT ATEXIT FUNCTION
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This routine is a replacement for the system atexit function which
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works in conjunction with the destructor lists.
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*/
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int __TCPPLUS_atexit ( EXITER fn )
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{
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DTOR_LIST *p = ( DTOR_LIST * ) malloc ( sizeof ( DTOR_LIST ) ) ;
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if ( p == NULL ) return ( -1 ) ;
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p->next = __TCPPLUS_dtors ;
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p->arg = NULL ;
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p->func = ( DESTRUCTOR ) fn ;
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__TCPPLUS_dtors = p ;
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__TCPPLUS_init () ;
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return ( 0 ) ;
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}
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