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<TITLE>APRON 0.9.10: Manipulating permutations of dimensions</TITLE>
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<H3> Manipulating permutations of dimensions </H3>
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<A NAME="IDX371"></A>
<DL>
<DT><U>Function:</U> void <B>ap_dimperm_init</B> <I>(ap_dimperm_t* <VAR>perm</VAR>, size_t <VAR>size</VAR>)</I>
<DD><A NAME="IDX372"></A>
<DT><U>Function:</U> void <B>ap_dimperm_clear</B> <I>(ap_dimperm_t* <VAR>perm</VAR>)</I>
<DD>Initialize and clear a dimperm structure.
</DL>
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<A NAME="IDX373"></A>
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<DT><U>Function:</U> ap_dimperm_t* <B>ap_dimperm_alloc</B> <I>(size_t <VAR>size</VAR>)</I>
<DD><A NAME="IDX374"></A>
<DT><U>Function:</U> void <B>ap_dimperm_free</B> <I>(ap_dimperm_t* <VAR>perm</VAR>)</I>
<DD>Allocate and free a dimperm structure.
</DL>
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<A NAME="IDX375"></A>
<DL>
<DT><U>Function:</U> void <B>ap_dimperm_fprint</B> <I>(FILE* <VAR>stream</VAR>, ap_dimperm_t* <VAR>perm</VAR>)</I>
<DD>Print the permutation.
</DL>
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<A NAME="IDX376"></A>
<DL>
<DT><U>Function:</U> void <B>ap_dimperm_set_id</B> <I>(ap_dimperm_t* <VAR>perm</VAR>)</I>
<DD>Fill the already allocated <VAR>perm</VAR> with the identity permutation.
</DL>
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<A NAME="IDX377"></A>
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<DT><U>Function:</U> void <B>ap_dimperm_compose</B> <I>(ap_dimperm_t* <VAR>perm</VAR>, ap_dimperm_t* <VAR>perm1</VAR>, ap_dimperm_t* <VAR>perm2</VAR>)</I>
<DD>Compose the 2 permutations <VAR>perm1</VAR> and <VAR>perm2</VAR> (in this order)
and store the result the already allocated perm.
The sizes of permutations are supposed to be equal.
At exit, we have <CODE>perm.dim[i] = perm2.dim[perm1.dim[i]]</CODE>.
</DL>
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<A NAME="IDX378"></A>
<DL>
<DT><U>Function:</U> void <B>ap_dimperm_invert</B> <I>(ap_dimperm_t* <VAR>nperm</VAR>, ap_dimperm_t* <VAR>perm</VAR>)</I>
<DD>Invert the permutation <VAR>perm</VAR> and store it in the already
allocated <VAR>nperm</VAR>. The sizes of permutations are supposed to
be equal.
</DL>
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<A NAME="Linear expressions of level 0"></A>
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