Changeset 2704 for trunk/gsdl

Timestamp:

2001-08-19T10:37:04+12:00 (23 years ago)

Author:

paynter

Message:

Small efficiency gain in expandWhileUniqueSuffixExpansion.

File:

• trunk/gsdl/src/phind/generate/phrase.cpp (modified) (2 diffs)

trunk/gsdl/src/phind/generate/phrase.cpp

@@ -744 +744 @@
 
 int Phrase::expandWhileUniqueSuffixExtension() {
-  assert(forward);
   ensureSuffixFound();
 
   // if the phrase occurs only once, do nothing
-  if (suffixFrequency < 2) {
+  if (suffixFrequency < 2)
     return 0;
-  }
+
+  // if we already know there's no unique suffix extension, do nothing
+  if (uniqueSuffixExtension == 0)
+    return 0;
 
   // count the length over which the cells are the same
@@ -785 +787 @@
 
 int Phrase::expandWhileUniquePrefixExtension() {
-  assert(forward);
   ensurePrefixFound();
 
   // if the phrase occurs only once, do nothing
-  if (prefixFrequency < 2) {
+  if (prefixFrequency < 2)
     return 0;
-  }
+
+  // if we already know there's no unique extension, do nothing
+  if (uniquePrefixExtension == 0)
+    return 0;
 
   // count the length over which the cells are the same