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src/arm64/utils-arm64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ARM64_UTILS_ARM64_H_
 #define V8_ARM64_UTILS_ARM64_H_
 
 #include <cmath>
 #include "src/v8.h"
 
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 template <typename T>
 inline bool IsQuietNaN(T num) {
   return std::isnan(num) && !IsSignallingNaN(num);
 }
 
 
 // Convert the NaN in 'num' to a quiet NaN.
 inline double ToQuietNaN(double num) {
-  ASSERT(isnan(num));
+  ASSERT(std::isnan(num));
   return rawbits_to_double(double_to_rawbits(num) | kDQuietNanMask);
 }
 
 
 inline float ToQuietNaN(float num) {
-  ASSERT(isnan(num));
+  ASSERT(std::isnan(num));
   return rawbits_to_float(float_to_rawbits(num) | kSQuietNanMask);
 }
 
 
 // Fused multiply-add.
 inline double FusedMultiplyAdd(double op1, double op2, double a) {
   return fma(op1, op2, a);
 }
 
 
 inline float FusedMultiplyAdd(float op1, float op2, float a) {
   return fmaf(op1, op2, a);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_UTILS_ARM64_H_