I was trying to debug it but the only change between 4.48 and 4.52 related to
the reading of the file that I found was
diff --git a/src/glpmps.c b/src/glpmps.c
index 390822a..2ee5559 100644
--- a/src/glpmps.c
+++ b/src/glpmps.c
@@ -842,6 +842,12 @@ blnk: { /* new BOUNDS vector */
else if (strcmp(type, "LI") == 0)
{ glp_set_col_kind(csa->P, j, GLP_IV);
lb = ceil(bnd);
+#if 1 /* 16/VII-2013 */
+ /* if column upper bound has not been explicitly specified,
+ take it as +inf */
+ if (!(flag[j] & 0x10))
+ ub = +DBL_MAX;
+#endif
}
else if (strcmp(type, "UI") == 0)
{ glp_set_col_kind(csa->P, j, GLP_IV)
I just didn't understanding this change.
Raniere
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