aboutsummaryrefslogtreecommitdiffstats
path: root/test/monniaux/glpk-4.65/src/api/ckasn.c
diff options
context:
space:
mode:
Diffstat (limited to 'test/monniaux/glpk-4.65/src/api/ckasn.c')
-rw-r--r--test/monniaux/glpk-4.65/src/api/ckasn.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/test/monniaux/glpk-4.65/src/api/ckasn.c b/test/monniaux/glpk-4.65/src/api/ckasn.c
new file mode 100644
index 00000000..56221a8a
--- /dev/null
+++ b/test/monniaux/glpk-4.65/src/api/ckasn.c
@@ -0,0 +1,78 @@
+/* ckasn.c (check correctness of assignment problem data) */
+
+/***********************************************************************
+* This code is part of GLPK (GNU Linear Programming Kit).
+*
+* Copyright (C) 2009-2016 Andrew Makhorin, Department for Applied
+* Informatics, Moscow Aviation Institute, Moscow, Russia. All rights
+* reserved. E-mail: <mao@gnu.org>.
+*
+* GLPK is free software: you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* GLPK is distributed in the hope that it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+* License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with GLPK. If not, see <http://www.gnu.org/licenses/>.
+***********************************************************************/
+
+#include "env.h"
+#include "glpk.h"
+
+/***********************************************************************
+* NAME
+*
+* glp_check_asnprob - check correctness of assignment problem data
+*
+* SYNOPSIS
+*
+* int glp_check_asnprob(glp_graph *G, int v_set);
+*
+* RETURNS
+*
+* If the specified assignment problem data are correct, the routine
+* glp_check_asnprob returns zero, otherwise, non-zero. */
+
+int glp_check_asnprob(glp_graph *G, int v_set)
+{ glp_vertex *v;
+ int i, k, ret = 0;
+ if (v_set >= 0 && v_set > G->v_size - (int)sizeof(int))
+ xerror("glp_check_asnprob: v_set = %d; invalid offset\n",
+ v_set);
+ for (i = 1; i <= G->nv; i++)
+ { v = G->v[i];
+ if (v_set >= 0)
+ { memcpy(&k, (char *)v->data + v_set, sizeof(int));
+ if (k == 0)
+ { if (v->in != NULL)
+ { ret = 1;
+ break;
+ }
+ }
+ else if (k == 1)
+ { if (v->out != NULL)
+ { ret = 2;
+ break;
+ }
+ }
+ else
+ { ret = 3;
+ break;
+ }
+ }
+ else
+ { if (v->in != NULL && v->out != NULL)
+ { ret = 4;
+ break;
+ }
+ }
+ }
+ return ret;
+}
+
+/* eof */