1GETABLEXPRSUPPORT(3)             ABL FUNCTIONS            GETABLEXPRSUPPORT(3)
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NAME

6       getablexprsupport - gives the expression's support.
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SYNOPSIS

9       #include "abl101.h"
10        void ∗getablexprsupport( Expr, Mode )
11         chain_list ∗Expr;
12         int         Mode;
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PARAMETERS

15       Expr                Expression.
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17       Mode                The returned support's mode.
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DESCRIPTION

20       getablexprsupport  gives  the  support  of  Expr.  if  Mode is ABL_SUP‐
21       PORT_CHAIN the support is returned using chain_list else it is returned
22       using  ptype_list.  The  support  must  be freed using the freechain or
23       freeptype functions.
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RETURN VALUE

26       getablexprsupport returns a pointer to a chain_list or a ptype_list.
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EXAMPLE

29       #include "abl101.h"
30         chain_list ∗Expr;
31         ptype_list ∗Support;
32         ptype_list ∗ScanSupport;
33         Expr = createablbinexpr( ABL_AND,
34                                  createablatom( "a" ),
35                                  createablatom( "b" ) );
36         Support = getablexprsupport( Expr, ABL_SUPPORT_PTYPE );
37         /* displays a b */
38         for ( ScanSupport  = Support;
39               ScanSupport != (ptype_list ∗)0;
40               ScanSupport  = ScanSupport->NEXT )
41         {
42           printf( "%s ", (char *)ScanSupport->DATA );
43         }
44         freeptype( Support );
45

SEE ALSO

47       abl(1)
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54ASIM/LIP6                       October 1, 1997           GETABLEXPRSUPPORT(3)