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<H2> Linear constraints of level 0 (<TT>`ap_lincons0.h'</TT>) </H2>
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<P>
<A NAME="IDX426"></A>
<DL>
<DT><U>datatype:</U> <B>ap_constyp_t</B>
<DD><TABLE><tr><td> </td><td class=example><pre>typedef enum ap_constyp_t {
AP_CONS_EQ, /* equality constraint */
AP_CONS_SUPEQ, /* >= constraint */
AP_CONS_SUP, /* > constraint */
AP_CONS_EQMOD, /* congruence equality constraint */
AP_CONS_DISEQ /* disequality constraint */
} ap_constyp_t;
</pre></td></tr></table>Datatype for type of constraints.
</DL>
</P><P>
<A NAME="IDX427"></A>
<DL>
<DT><U>datatype:</U> <B>ap_lincons0_t</B>
<DD><TABLE><tr><td> </td><td class=example><pre>typedef struct ap_lincons0_t {
ap_linexpr0_t* linexpr0; /* expression */
ap_constyp_t constyp; /* type of constraint */
ap_scalar_t* scalar; /* maybe NULL.
For EQMOD constraint, indicates the
modulo */
} ap_lincons0_t;
</pre></td></tr></table>Datatype for constraints.
</P><P>
Constraints are meant to be manipulated freely via their components. Creating the constraint <CODE>[1,2]x0 + 5/2x1 >=0</CODE> and then freeing it can be done with
<TABLE><tr><td> </td><td class=example><pre>ap_lincons0_t cons = ap_lincons0_make(AP_CONS_SUPEQ,
ap_linexpr0_alloc(AP_LINEXPR_SPARSE,2),
NULL);
ap_linexpr0_set_list(cons.linexpr0,
AP_COEFF_I_INT, 1,2, 0,
AP_COEFF_S_FRAC, 5,2, 1,
AP_END);
ap_lincons0_clear(&cons);
</pre></td></tr></table></DL>
</P><P>
<A NAME="IDX428"></A>
<DL>
<DT><U>datatype:</U> <B>ap_lincons0_array_t</B>
<DD><TABLE><tr><td> </td><td class=example><pre>typedef struct ap_lincons0_array_t {
ap_lincons0_t* p;
size_t size;
} ap_lincons0_array_t;
</pre></td></tr></table>Datatype for arrays of constraints.
</P><P>
Arrays are accessed directly, for example by writing
<CODE>array->p[i]</CODE> (of type <CODE>ap_lincons0_t</CODE>),
<CODE>array->p[i].constyp</CODE> and <CODE>array->p[i].linexpr0</CODE>.
</P><P>
One can assign a constraint to the index <VAR>index</VAR> by writing:
<CODE>array->p[index] = ap_lincons0_make(constyp,expr)</CODE>.
</DL>
</P><P>
<BLOCKQUOTE><TABLE BORDER=0 CELLSPACING=0>
<TR><TD ALIGN="left" VALIGN="TOP"><A HREF="apron_119.html#SEC155">Allocating linear constraints of level 0</A></TD><TD> </TD><TD ALIGN="left" VALIGN="TOP"></TD></TR>
<TR><TD ALIGN="left" VALIGN="TOP"><A HREF="apron_120.html#SEC156">Tests on linear constraints of level 0</A></TD><TD> </TD><TD ALIGN="left" VALIGN="TOP"></TD></TR>
<TR><TD ALIGN="left" VALIGN="TOP"><A HREF="apron_121.html#SEC157">Arrays of linear constraints of level 0</A></TD><TD> </TD><TD ALIGN="left" VALIGN="TOP"></TD></TR>
<TR><TD ALIGN="left" VALIGN="TOP"><A HREF="apron_122.html#SEC158">Change of dimensions and permutations of linear constraints of level 0</A></TD><TD> </TD><TD ALIGN="left" VALIGN="TOP"></TD></TR>
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<A NAME="Allocating linear constraints of level 0"></A>
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