From: Matthias Braun <matze@braunis.de>
Date: Sat, 5 Sep 2009 15:54:04 +0000 (+0000)
Subject: allow final_cost pointer to be NULL
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=7fbd7a186d870956996ce1fff2edea2ef4bdfaf0;p=libfirm

allow final_cost pointer to be NULL

[r26495]
---

diff --git a/include/libfirm/adt/hungarian.h b/include/libfirm/adt/hungarian.h
index 0744d699a..9f9d4bad4 100644
--- a/include/libfirm/adt/hungarian.h
+++ b/include/libfirm/adt/hungarian.h
@@ -92,6 +92,6 @@ int hungarian_solve(hungarian_problem_t *p, int *assignment, int *final_cost, in
  * @param p          The hungarian object
  * @param cost_width The minimum field width of the costs
  */
-void hungarian_print_costmatrix(hungarian_problem_t *p, int cost_width);
+void hungarian_print_cost_matrix(hungarian_problem_t *p, int cost_width);
 
 #endif /* _HUNGARIAN_H_ */
diff --git a/ir/adt/hungarian.c b/ir/adt/hungarian.c
index 0b3134ab2..26c4fe597 100644
--- a/ir/adt/hungarian.c
+++ b/ir/adt/hungarian.c
@@ -71,7 +71,7 @@ static void hungarian_dump_f(FILE *f, int **C, int rows, int cols, int width) {
 	fprintf(f, "\n");
 }
 
-void hungarian_print_costmatrix(hungarian_problem_t *p, int width) {
+void hungarian_print_cost_matrix(hungarian_problem_t *p, int width) {
 	hungarian_dump_f(stderr, p->cost, p->num_rows, p->num_cols, width);
 }
 
@@ -441,7 +441,8 @@ done:
 	xfree(unchosen_row);
 	xfree(col_mate);
 
-	*final_cost = cost;
+	if (final_cost != NULL)
+		*final_cost = cost;
 
 	return 0;
 }