Update ICU to 54.1 step 1

source/common/utrie2.cpp

 /*
 ******************************************************************************
 *
-*   Copyright (C) 2001-2013, International Business Machines
+*   Copyright (C) 2001-2014, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 ******************************************************************************
 *   file name:  utrie2.cpp
 *   encoding:   US-ASCII
 *   tab size:   8 (not used)
 *   indentation:4
 *
 *   created on: 2008aug16 (starting from a copy of utrie.c)
 *   created by: Markus W. Scherer
@@ skipping 377 matching lines @@
     }
     if(signature==UTRIE_SIG) {
         return 1;
     }
     if(anyEndianOk && signature==UTRIE_OE_SIG) {
         return 1;
     }
     return 0;
 }
 
+U_CAPI UBool U_EXPORT2
+utrie2_isFrozen(const UTrie2 *trie) {
+    return (UBool)(trie->newTrie==NULL);
+}
+
+U_CAPI int32_t U_EXPORT2
+utrie2_serialize(const UTrie2 *trie,
+                 void *data, int32_t capacity,
+                 UErrorCode *pErrorCode) {
+    /* argument check */
+    if(U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    if( trie==NULL || trie->memory==NULL || trie->newTrie!=NULL ||
+        capacity<0 || (capacity>0 && (data==NULL || (U_POINTER_MASK_LSB(data, 3)!=0)))
+    ) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    if(capacity>=trie->length) {
+        uprv_memcpy(data, trie->memory, trie->length);
+    } else {
+        *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+    }
+    return trie->length;
+}
+
 U_CAPI int32_t U_EXPORT2
 utrie2_swap(const UDataSwapper *ds,
             const void *inData, int32_t length, void *outData,
             UErrorCode *pErrorCode) {
     const UTrie2Header *inTrie;
     UTrie2Header trie;
     int32_t dataLength, size;
     UTrie2ValueBits valueBits;
 
     if(U_FAILURE(*pErrorCode)) {
@@ skipping 315 matching lines @@
     if(codePointLimit==limit) {
         codePoint=U_SENTINEL;
         return 0;
     }
     uint16_t result;
     UTRIE2_U16_NEXT16(trie, codePointLimit, limit, codePoint, result);
     return result;
 }
 
 U_NAMESPACE_END