File: exist.c

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/*
\funcref{fun\_exists}{void fun\_exists ()}
    {}
    {}
    {exists()}
    {}
    {funexist.c}
    {

        Function {\em fun\_exists()} checks if a file with the name of the
        last pushed string exists. If so, {\em reg.vu.intval} is set to 1.
        Else, the return register indicates 0.

    }
*/

#include "builtin.ih"

void fun_exists()
{
    reg = *intConstructor_i(exists(stringStr(top())));
}