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The C and C++ Include Header Files

cat -n /usr/include/node/v8-date.h

     1	// Copyright 2021 the V8 project authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style license that can be
     3	// found in the LICENSE file.
     4	
     5	#ifndef INCLUDE_V8_DATE_H_
     6	#define INCLUDE_V8_DATE_H_
     7	
     8	#include "v8-local-handle.h"  // NOLINT(build/include_directory)
     9	#include "v8-object.h"        // NOLINT(build/include_directory)
    10	#include "v8config.h"         // NOLINT(build/include_directory)
    11	
    12	namespace v8 {
    13	
    14	class Context;
    15	
    16	/**
    17	 * An instance of the built-in Date constructor (ECMA-262, 15.9).
    18	 */
    19	class V8_EXPORT Date : public Object {
    20	 public:
    21	  static V8_WARN_UNUSED_RESULT MaybeLocal<Value> New(Local<Context> context,
    22	                                                     double time);
    23	
    24	  /**
    25	   * A specialization of Value::NumberValue that is more efficient
    26	   * because we know the structure of this object.
    27	   */
    28	  double ValueOf() const;
    29	
    30	  /**
    31	   * Generates ISO string representation.
    32	   */
    33	  v8::Local<v8::String> ToISOString() const;
    34	
    35	  V8_INLINE static Date* Cast(Value* value) {
    36	#ifdef V8_ENABLE_CHECKS
    37	    CheckCast(value);
    38	#endif
    39	    return static_cast<Date*>(value);
    40	  }
    41	
    42	 private:
    43	  static void CheckCast(Value* obj);
    44	};
    45	
    46	}  // namespace v8
    47	
    48	#endif  // INCLUDE_V8_DATE_H_