Update re2

third_party/re2/re2/testing/random_test.cc

 // Copyright 2008 The RE2 Authors.  All Rights Reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // Random testing of regular expression matching.
 
 #include <stdio.h>
 #include "util/test.h"
 #include "re2/testing/exhaustive_tester.h"
 
 DEFINE_int32(regexpseed, 404, "Random regexp seed.");
 DEFINE_int32(regexpcount, 100, "How many random regexps to generate.");
 DEFINE_int32(stringseed, 200, "Random string seed.");
 DEFINE_int32(stringcount, 100, "How many random strings to generate.");
 
 namespace re2 {
 
 // Runs a random test on the given parameters.
 // (Always uses the same random seeds for reproducibility.
 // Can give different seeds on command line.)
 static void RandomTest(int maxatoms, int maxops,
                        const vector<string>& alphabet,
                        const vector<string>& ops,
                        int maxstrlen, const vector<string>& stralphabet,
                        const string& wrapper) {
   // Limit to smaller test cases in debug mode,
   // because everything is so much slower.
-  if (DEBUG_MODE) {
+  if (RE2_DEBUG_MODE) {
     maxatoms--;
     maxops--;
     maxstrlen /= 2;
   }
 
   ExhaustiveTester t(maxatoms, maxops, alphabet, ops,
                      maxstrlen, stralphabet, wrapper, "");
   t.RandomStrings(FLAGS_stringseed, FLAGS_stringcount);
   t.GenerateRandom(FLAGS_regexpseed, FLAGS_regexpcount);
   printf("%d regexps, %d tests, %d failures [%d/%d str]\n",
@@ skipping 47 matching lines @@
   vector<string> atoms = Split(" ",
     ". (?:^) (?:$) \\a \\f \\n \\r \\t \\v "
     "\\d \\D \\s \\S \\w \\W (?:\\b) (?:\\B) "
     "a (a) b c - \\\\");
   vector<string> alphabet = Explode("abc123\001\002\003\t\r\n\v\f\a");
   RandomTest(10, 10, atoms, ops, 20, alphabet, "");
 }
 
 }  // namespace re2