From 89e27900d9d197cc320f7697c61059a5670c86bb Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Fri, 7 Mar 2014 16:08:58 +0000
Subject: [PATCH] output improvements

---
 main.c | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/main.c b/main.c
index 86b5d73..f8348cb 100644
--- a/main.c
+++ b/main.c
@@ -27,6 +27,7 @@ static AdjWord *xalloc_adjmatrix(void) {
 static void prep(void) {
   adjall = ~((~(AdjWord)0) << m);
   adjmatrix = xalloc_adjmatrix();
+  glp_term_out(GLP_OFF);
 }
 
 static AdjWord one_adj_bit(int bitnum) {
@@ -41,6 +42,7 @@ static int count_set_adj_bits(AdjWord w) {
 }
 
 static void optimise(void) {
+  glp_prob *prob = 0;
   int i, j, totalfrags;
 
   for (i=0, totalfrags=0; i<n; i++) {
@@ -49,8 +51,8 @@ static void optimise(void) {
     printf("%"PRADJ" ", adjmatrix[i]);
     double maxminsize = (double)m / frags;
     if (maxminsize < best) {
-      printf(" too fine\n");
-      return;
+      printf(" too fine            ");
+      goto out;
     }
   }
 
@@ -78,12 +80,13 @@ static void optimise(void) {
    * which we build up as we go.
    */
 
-  glp_prob *prob = glp_create_prob();
+  prob = glp_create_prob();
 
   int Y_totals_i = glp_add_rows(prob, n);
   int Y_totals_j = glp_add_rows(prob, m);
   int X_minimum = glp_add_cols(prob, 1);
 
+  {
   int next_matrix_entry = 1; /* wtf GLPK! */
   int matrix_entries_size = next_matrix_entry + n + m + totalfrags*2;
   double matrix_entries[matrix_entries_size];
@@ -147,11 +150,11 @@ static void optimise(void) {
   printf(" simplex=%d", r);
 
 #define OKERR(e) \
-  case e: printf(" " #e "\n"); goto out;
+  case e: printf(" " #e ); goto out;
 #define BADERR(e) \
-  case e: printf(" " #e " CRASHING\n"); exit(-1);
+  case e: printf(" " #e " CRASHING"); exit(-1);
 #define DEFAULT \
-  default: printf(" ! CRASHING\n"); exit(-1);
+  default: printf(" ! CRASHING"); exit(-1);
 
   switch (r) {
   OKERR(GLP_ESING);
@@ -184,10 +187,8 @@ static void optimise(void) {
 
   double got = glp_get_obj_val(prob);
   printf("  %g", got);
-  if (got <= best) {
-    printf("\n");
+  if (got <= best)
     goto out;
-  }
 
   best = got;
 
@@ -198,11 +199,14 @@ static void optimise(void) {
   best_adjmatrix = xalloc_adjmatrix();
   memcpy(best_adjmatrix, adjmatrix, sizeof(*adjmatrix)*n);
 
-  printf(" <--\n");
+  printf(" BEST        \n");
   return;
 
+  }
  out:
-  glp_delete_prob(prob);
+  if (prob)
+    glp_delete_prob(prob);
+  printf("\r");
 }
 
 static void iterate_recurse(int i, AdjWord min) {
@@ -228,6 +232,7 @@ int main(int argc, char **argv) {
   m = atoi(argv[2]);
   prep();
   iterate();
+  printf("\n");
   if (ferror(stdout) || fclose(stdout)) { perror("stdout"); exit(-1); }
   return 0;
 }
-- 
2.30.2