Declare kCachedPowersLength only if !ASSERT_DISABLED

Source/wtf/dtoa/cached-powers.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 117 matching lines @@
         {UINT64_2PART_C(0xe7109bfb, a19c0c9d), 853, 276},
         {UINT64_2PART_C(0xac2820d9, 623bf429), 880, 284},
         {UINT64_2PART_C(0x80444b5e, 7aa7cf85), 907, 292},
         {UINT64_2PART_C(0xbf21e440, 03acdd2d), 933, 300},
         {UINT64_2PART_C(0x8e679c2f, 5e44ff8f), 960, 308},
         {UINT64_2PART_C(0xd433179d, 9c8cb841), 986, 316},
         {UINT64_2PART_C(0x9e19db92, b4e31ba9), 1013, 324},
         {UINT64_2PART_C(0xeb96bf6e, badf77d9), 1039, 332},
         {UINT64_2PART_C(0xaf87023b, 9bf0ee6b), 1066, 340},
     };
-    static const int kCachedPowersLength = ARRAY_SIZE(kCachedPowers);
     static const int kCachedPowersOffset = 348; // -kCachedPowers[0].decimal_exponent
 
     const int PowersOfTenCache::kDecimalExponentDistance = 8; // kCachedPowers[1].decimal_exponent - kCachedPowers[0].decimal_exponent
     const int PowersOfTenCache::kMinDecimalExponent = -348; // kCachedPowers[0].decimal_exponent
     const int PowersOfTenCache::kMaxDecimalExponent = 340; // kCachedPowers[kCachedPowersLength - 1].decimal_exponent
 
 #ifndef NDEBUG
+#if !ASSERT_DISABLED
+    static const int kCachedPowersLength = ARRAY_SIZE(kCachedPowers);
+#endif
+
     // Check that the static constants match the values in kCachedPowers.
     static void validateStaticConstants() {
         ASSERT(kCachedPowersOffset == -kCachedPowers[0].decimal_exponent);
         ASSERT(PowersOfTenCache::kDecimalExponentDistance == (kCachedPowers[1].decimal_exponent - kCachedPowers[0].decimal_exponent));
         ASSERT(PowersOfTenCache::kMinDecimalExponent == kCachedPowers[0].decimal_exponent);
         ASSERT(PowersOfTenCache::kMaxDecimalExponent == kCachedPowers[kCachedPowersLength - 1].decimal_exponent);
     }
 #endif
 
     void PowersOfTenCache::GetCachedPowerForBinaryExponentRange(
@@ skipping 32 matching lines @@
         CachedPower cached_power = kCachedPowers[index];
         *power = DiyFp(cached_power.significand, cached_power.binary_exponent);
         *found_exponent = cached_power.decimal_exponent;
         ASSERT(*found_exponent <= requested_exponent);
         ASSERT(requested_exponent < *found_exponent + kDecimalExponentDistance);
     }
 
 }  // namespace double_conversion
 
 } // namespace WTF