// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// http://code.google.com/p/protobuf/
//
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// Author: jasonh@google.com (Jason Hsueh)
//
// Implements methods of coded_stream.h that need to be inlined for performance
// reasons, but should not be defined in a public header.

#ifndef GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__
#define GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__

#include <google/protobuf/io/coded_stream.h>
#include <google/protobuf/io/zero_copy_stream_impl_lite.h>
#include <string>
#include <google/protobuf/stubs/stl_util.h>

namespace google {
namespace protobuf {
namespace io {

inline bool CodedInputStream::InternalReadStringInline(string* buffer,
                                                       int size) {
  if (size < 0) return false;  // security: size is often user-supplied

  if (BufferSize() >= size) {
    STLStringResizeUninitialized(buffer, size);
    // When buffer is empty, string_as_array(buffer) will return NULL but memcpy
    // requires non-NULL pointers even when size is 0. Hench this check.
    if (size > 0) {
      memcpy(mutable_string_data(buffer), buffer_, size);
      Advance(size);
    }
    return true;
  }

  return ReadStringFallback(buffer, size);
}

}  // namespace io
}  // namespace protobuf
}  // namespace google
#endif  // GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__
