1 files changed, 121 insertions, 0 deletions
diff --git a/src/misc/espresso/sparse_int.h b/src/misc/espresso/sparse_int.h
new file mode 100644
index 00000000..49b2509a
--- /dev/null
+++ b/src/misc/espresso/sparse_int.h
@@ -0,0 +1,121 @@
+/*
+ * Revision Control Information
+ *
+ * $Source$
+ * $Author$
+ * $Revision$
+ * $Date$
+ *
+ */
+//#include "port.h"
+//#include "utility.h"
+#include "sparse.h"
+
+#include "util_hack.h" // added
+
+
+
+/*
+ *  sorted, double-linked list insertion
+ *
+ *  type: object type
+ *
+ *  first, last: fields (in header) to head and tail of the list
+ *  count: field (in header) of length of the list
+ *
+ *  next, prev: fields (in object) to link next and previous objects
+ *  value: field (in object) which controls the order
+ *
+ *  newval: value field for new object
+ *  e: an object to use if insertion needed (set to actual value used)
+ */
+
+#define sorted_insert(type, first, last, count, next, prev, value, newval, e) \
+    if (last == 0) { \
+    e->value = newval; \
+    first = e; \
+    last = e; \
+    e->next = 0; \
+    e->prev = 0; \
+    count++; \
+    } else if (last->value < newval) { \
+    e->value = newval; \
+    last->next = e; \
+    e->prev = last; \
+    last = e; \
+    e->next = 0; \
+    count++; \
+    } else if (first->value > newval) { \
+    e->value = newval; \
+    first->prev = e; \
+    e->next = first; \
+    first = e; \
+    e->prev = 0; \
+    count++; \
+    } else { \
+    type *p; \
+    for(p = first; p->value < newval; p = p->next) \
+        ; \
+    if (p->value > newval) { \
+        e->value = newval; \
+        p = p->prev; \
+        p->next->prev = e; \
+        e->next = p->next; \
+        p->next = e; \
+        e->prev = p; \
+        count++; \
+    } else { \
+        e = p; \
+    } \
+    }
+
+
+/*
+ *  double linked-list deletion
+ */
+#define dll_unlink(p, first, last, next, prev, count) { \
+    if (p->prev == 0) { \
+    first = p->next; \
+    } else { \
+    p->prev->next = p->next; \
+    } \
+    if (p->next == 0) { \
+    last = p->prev; \
+    } else { \
+    p->next->prev = p->prev; \
+    } \
+    count--; \
+}
+
+
+#ifdef FAST_AND_LOOSE
+extern sm_element *sm_element_freelist;
+extern sm_row *sm_row_freelist;
+extern sm_col *sm_col_freelist;
+
+#define sm_element_alloc(newobj) \
+    if (sm_element_freelist == NIL(sm_element)) { \
+    newobj = ALLOC(sm_element, 1); \
+    } else { \
+    newobj = sm_element_freelist; \
+    sm_element_freelist = sm_element_freelist->next_col; \
+    } \
+    newobj->user_word = NIL(char); \
+
+#define sm_element_free(e) \
+    (e->next_col = sm_element_freelist, sm_element_freelist = e)
+
+#else
+
+#define sm_element_alloc(newobj)    \
+    newobj = ALLOC(sm_element, 1);    \
+    newobj->user_word = NIL(char);
+#define sm_element_free(e)        \
+    FREE(e)
+#endif
+
+
+extern void sm_row_remove_element();
+extern void sm_col_remove_element();
+
+/* LINTLIBRARY */