File: equal.c

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/*
                            E Q U A L . C
*/

#include "iccomp.h"

ESTRUC_ *equal (lval, rval)
    ESTRUC_
        *lval,
        *rval;
{
    btoi(lval);                             /* convert boolean to i */
    btoi(rval);

    if (conflict(lval, rval, op_eq))        /* test type conflict */
        return(lval);

    if ((lval->type & rval->type & ~ALLTYPES) == e_const)
    {
        if (test_type(lval, e_int))
            lval->evalue = (lval->evalue == rval->evalue);
        else
        {
            lval->evalue = !
                      (
                        strcmp
                        (
                            stringtab[lval->evalue].string,
                            stringtab[rval->evalue].string
                        )
                      );
            set_type(lval, e_int | e_const);
        }
    }
    else
        defcode(lval, rval, op_eq);

    return (lval);                          /* return new expression */
}