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(relation_transpose): Rewrite to avoid bogus complaint

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from maintainer-distcheck about casting the argument of 'free'.
This commit is contained in:
Paul Eggert
2005-07-22 21:56:20 +00:00
parent a9401edbf5
commit 26a69b31fa
1 changed files with 11 additions and 13 deletions
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24
src/relation.c
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@@ -1,5 +1,5 @@
/* Binary relations.
Copyright (C) 2002, 2004 Free Software Foundation, Inc.
Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
@@ -123,6 +123,7 @@ relation_digraph (relation r, relation_node size, bitsetv *function)
void
relation_transpose (relation *R_arg, relation_node n)
{
relation r = *R_arg;
/* The result. */
relation new_R = xnmalloc (n, sizeof *new_R);
/* END_R[I] -- next entry of NEW_R[I]. */
@@ -135,14 +136,14 @@ relation_transpose (relation *R_arg, relation_node n)
if (trace_flag & trace_sets)
{
fputs ("relation_transpose: input\n", stderr);
relation_print (*R_arg, n, stderr);
relation_print (r, n, stderr);
}
/* Count. */
for (i = 0; i < n; i++)
if ((*R_arg)[i])
for (j = 0; (*R_arg)[i][j] != END_NODE; ++j)
++nedges[(*R_arg)[i][j]];
if (r[i])
for (j = 0; r[i][j] != END_NODE; ++j)
++nedges[r[i][j]];
/* Allocate. */
for (i = 0; i < n; i++)
@@ -159,20 +160,17 @@ relation_transpose (relation *R_arg, relation_node n)
/* Store. */
for (i = 0; i < n; i++)
if ((*R_arg)[i])
for (j = 0; (*R_arg)[i][j] != END_NODE; ++j)
{
*end_R[(*R_arg)[i][j]] = i;
++end_R[(*R_arg)[i][j]];
}
if (r[i])
for (j = 0; r[i][j] != END_NODE; ++j)
*end_R[r[i][j]]++ = i;
free (nedges);
free (end_R);
/* Free the input: it is replaced with the result. */
for (i = 0; i < n; i++)
free ((*R_arg)[i]);
free (*R_arg);
free (r[i]);
free (r);
if (trace_flag & trace_sets)
{