Switch to static_assert in base/.

base/rand_util.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/rand_util.h"
 
 #include <math.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 20 matching lines @@
 double RandDouble() {
   return BitsToOpenEndedUnitInterval(base::RandUint64());
 }
 
 double BitsToOpenEndedUnitInterval(uint64_t bits) {
   // We try to get maximum precision by masking out as many bits as will fit
   // in the target type's mantissa, and raising it to an appropriate power to
   // produce output in the range [0, 1).  For IEEE 754 doubles, the mantissa
   // is expected to accommodate 53 bits.
 
-  COMPILE_ASSERT(std::numeric_limits<double>::radix == 2, otherwise_use_scalbn);
+  static_assert(std::numeric_limits<double>::radix == 2,
+                "otherwise use scalbn");
   static const int kBits = std::numeric_limits<double>::digits;
   uint64_t random_bits = bits & ((UINT64_C(1) << kBits) - 1);
   double result = ldexp(static_cast<double>(random_bits), -1 * kBits);
   DCHECK_GE(result, 0.0);
   DCHECK_LT(result, 1.0);
   return result;
 }
 
 uint64_t RandGenerator(uint64_t range) {
   DCHECK_GT(range, 0u);
@@ skipping 13 matching lines @@
 }
 
 std::string RandBytesAsString(size_t length) {
   DCHECK_GT(length, 0u);
   std::string result;
   RandBytes(WriteInto(&result, length + 1), length);
   return result;
 }
 
 }  // namespace base