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//usage example

#include <time.h>
#include <stdio.h>
#include <boost/bind.hpp>

#include "finally_execute.h"

FILE* foo()
{
    srand( (unsigned int)time( NULL ) );

    FILE* f = fopen( "finally_execute.h", "rb");
    if( f ) {
        //prepare automatic file closing
        finally_execute close_file = make_fin_exec( boost::bind(fclose, f) );

        int r = rand();
        if( r < (RAND_MAX/2) )
            throw 0;

        //cancel file closing
        close_file.dismiss();
        return f;
    }
    return 0;
}

int main()
{
    FILE* f = 0;
    try {
        f = foo();
        if( f )
            fclose(f);
    } catch(...) {
        return 1;
    }
    return 0;
}