Add .clang-format and run clang-format on runtime/platform.

runtime/platform/utils.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_PLATFORM_UTILS_H_
 #define RUNTIME_PLATFORM_UTILS_H_
 
 #include "platform/assert.h"
 #include "platform/globals.h"
 
 namespace dart {
 
 class Utils {
  public:
-  template<typename T>
+  template <typename T>
   static inline T Minimum(T x, T y) {
     return x < y ? x : y;
   }
 
-  template<typename T>
+  template <typename T>
   static inline T Maximum(T x, T y) {
     return x > y ? x : y;
   }
 
-  template<typename T>
+  template <typename T>
   static inline T Abs(T x) {
     if (x < 0) return -x;
     return x;
   }
 
-  template<typename T>
+  template <typename T>
   static inline bool IsPowerOfTwo(T x) {
     return ((x & (x - 1)) == 0) && (x != 0);
   }
 
-  template<typename T>
+  template <typename T>
   static inline int ShiftForPowerOfTwo(T x) {
     ASSERT(IsPowerOfTwo(x));
     int num_shifts = 0;
     while (x > 1) {
       num_shifts++;
       x = x >> 1;
     }
     return num_shifts;
   }
 
-  template<typename T>
+  template <typename T>
   static inline bool IsAligned(T x, intptr_t n) {
     ASSERT(IsPowerOfTwo(n));
     return (x & (n - 1)) == 0;
   }
 
-  template<typename T>
+  template <typename T>
   static inline bool IsAligned(T* x, intptr_t n) {
     return IsAligned(reinterpret_cast<uword>(x), n);
   }
 
-  template<typename T>
+  template <typename T>
   static inline T RoundDown(T x, intptr_t n) {
     ASSERT(IsPowerOfTwo(n));
     return (x & -n);
   }
 
-  template<typename T>
+  template <typename T>
   static inline T* RoundDown(T* x, intptr_t n) {
     return reinterpret_cast<T*>(RoundDown(reinterpret_cast<uword>(x), n));
   }
 
-  template<typename T>
+  template <typename T>
   static inline T RoundUp(T x, intptr_t n) {
     return RoundDown(x + n - 1, n);
   }
 
-  template<typename T>
+  template <typename T>
   static inline T* RoundUp(T* x, intptr_t n) {
     return reinterpret_cast<T*>(RoundUp(reinterpret_cast<uword>(x), n));
   }
 
   static uintptr_t RoundUpToPowerOfTwo(uintptr_t x);
   static int CountOneBits(uint32_t x);
 
   static int HighestBit(int64_t v);
 
   static int BitLength(int64_t value) {
     // Flip bits if negative (-1 becomes 0).
     value ^= value >> (8 * sizeof(value) - 1);
     return (value == 0) ? 0 : (Utils::HighestBit(value) + 1);
   }
 
   static int CountLeadingZeros(uword x);
   static int CountTrailingZeros(uword x);
 
   // Computes a hash value for the given string.
   static uint32_t StringHash(const char* data, int length);
 
   // Computes a hash value for the given word.
   static uint32_t WordHash(intptr_t key);
 
   // Check whether an N-bit two's-complement representation can hold value.
-  template<typename T>
+  template <typename T>
   static inline bool IsInt(int N, T value) {
     ASSERT((0 < N) &&
            (static_cast<unsigned int>(N) < (kBitsPerByte * sizeof(value))));
     T limit = static_cast<T>(1) << (N - 1);
     return (-limit <= value) && (value < limit);
   }
 
-  template<typename T>
+  template <typename T>
   static inline bool IsUint(int N, T value) {
     ASSERT((0 < N) &&
            (static_cast<unsigned int>(N) < (kBitsPerByte * sizeof(value))));
     T limit = static_cast<T>(1) << N;
     return (0 <= value) && (value < limit);
   }
 
   // Check whether the magnitude of value fits in N bits, i.e., whether an
   // (N+1)-bit sign-magnitude representation can hold value.
-  template<typename T>
+  template <typename T>
   static inline bool IsAbsoluteUint(int N, T value) {
     ASSERT((0 < N) &&
            (static_cast<unsigned int>(N) < (kBitsPerByte * sizeof(value))));
     if (value < 0) value = -value;
     return IsUint(N, value);
   }
 
   static inline int32_t Low16Bits(int32_t value) {
     return static_cast<int32_t>(value & 0xffff);
   }
 
   static inline int32_t High16Bits(int32_t value) {
     return static_cast<int32_t>(value >> 16);
   }
 
   static inline int32_t Low32Bits(int64_t value) {
     return static_cast<int32_t>(value);
   }
 
   static inline int32_t High32Bits(int64_t value) {
     return static_cast<int32_t>(value >> 32);
   }
 
   static inline int64_t LowHighTo64Bits(uint32_t low, int32_t high) {
     return (static_cast<int64_t>(high) << 32) | (low & 0x0ffffffffLL);
   }
 
-  static bool IsDecimalDigit(char c) {
-    return ('0' <= c) && (c <= '9');
-  }
+  static bool IsDecimalDigit(char c) { return ('0' <= c) && (c <= '9'); }
 
   static bool IsHexDigit(char c) {
-    return IsDecimalDigit(c)
-          || (('A' <= c) && (c <= 'F'))
-          || (('a' <= c) && (c <= 'f'));
+    return IsDecimalDigit(c) || (('A' <= c) && (c <= 'F')) ||
+           (('a' <= c) && (c <= 'f'));
   }
 
   static int HexDigitToInt(char c) {
     ASSERT(IsHexDigit(c));
     if (IsDecimalDigit(c)) return c - '0';
     if (('A' <= c) && (c <= 'F')) return 10 + (c - 'A');
     return 10 + (c - 'a');
   }
 
   static char IntToHexDigit(int i) {
     ASSERT(0 <= i && i < 16);
     if (i < 10) return static_cast<char>('0' + i);
     return static_cast<char>('A' + (i - 10));
   }
 
   // Perform a range check, checking if
   //    offset + count <= length
   // without the risk of integer overflow.
   static inline bool RangeCheck(intptr_t offset,
                                 intptr_t count,
                                 intptr_t length) {
-    return offset >= 0 &&
-           count >= 0 &&
-           length >= 0 &&
+    return offset >= 0 && count >= 0 && length >= 0 &&
            count <= (length - offset);
   }
 
   static inline bool WillAddOverflow(int64_t a, int64_t b) {
     return ((b > 0) && (a > (kMaxInt64 - b))) ||
            ((b < 0) && (a < (kMinInt64 - b)));
   }
 
   static inline bool WillSubOverflow(int64_t a, int64_t b) {
     return ((b > 0) && (a < (kMinInt64 + b))) ||
@@ skipping 33 matching lines @@
 #include "platform/utils_linux.h"
 #elif defined(TARGET_OS_MACOS)
 #include "platform/utils_macos.h"
 #elif defined(TARGET_OS_WINDOWS)
 #include "platform/utils_win.h"
 #else
 #error Unknown target os.
 #endif
 
 #endif  // RUNTIME_PLATFORM_UTILS_H_