X-Git-Url: https://git.saurik.com/apple/icu.git/blobdiff_plain/51004dcb01e06fef634b61be77ed73dd61cb6db9..b801cf366c7671a99bdcef84d1e9c0ec64b36723:/icuSources/common/unicode/bytestriebuilder.h

diff --git a/icuSources/common/unicode/bytestriebuilder.h b/icuSources/common/unicode/bytestriebuilder.h
index f5e62d9a..d00ab9b3 100644
--- a/icuSources/common/unicode/bytestriebuilder.h
+++ b/icuSources/common/unicode/bytestriebuilder.h
@@ -1,6 +1,6 @@
 /*
 *******************************************************************************
-*   Copyright (C) 2010-2012, International Business Machines
+*   Copyright (C) 2010-2014, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *******************************************************************************
 *   file name:  bytestriebuilder.h
@@ -71,6 +71,9 @@ public:
      * Builds a BytesTrie for the add()ed data.
      * Once built, no further data can be add()ed until clear() is called.
      *
+     * A BytesTrie cannot be empty. At least one (byte sequence, value) pair
+     * must have been add()ed.
+     *
      * This method passes ownership of the builder's internal result array to the new trie object.
      * Another call to any build() variant will re-serialize the trie.
      * After clear() has been called, a new array will be used as well.
@@ -88,6 +91,9 @@ public:
      * Builds a BytesTrie for the add()ed data and byte-serializes it.
      * Once built, no further data can be add()ed until clear() is called.
      *
+     * A BytesTrie cannot be empty. At least one (byte sequence, value) pair
+     * must have been add()ed.
+     *
      * Multiple calls to buildStringPiece() return StringPieces referring to the
      * builder's same byte array, without rebuilding.
      * If buildStringPiece() is called after build(), the trie will be
@@ -135,7 +141,6 @@ private:
     virtual int32_t getMinLinearMatch() const { return BytesTrie::kMinLinearMatch; }
     virtual int32_t getMaxLinearMatchLength() const { return BytesTrie::kMaxLinearMatchLength; }
 
-#ifndef U_HIDE_INTERNAL_API
     /**
      * @internal
      */
@@ -147,7 +152,6 @@ private:
     private:
         const char *s;
     };
-#endif  /* U_HIDE_INTERNAL_API */
 
     virtual Node *createLinearMatchNode(int32_t i, int32_t byteIndex, int32_t length,
                                         Node *nextNode) const;