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  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. class ByteBuffer final
  6. {
  7. private:
  8.     char* buffer;
  9.     size_t size;
  10. public:
  11.     size_t GetSize() const
  12.     {
  13.     	return size;
  14.     }
  15.     const char* GetBuffer() const
  16.     {
  17.     	return buffer;
  18.     }
  19.     char* GetBuffer()
  20.     {
  21.     	return buffer;
  22.     }
  23.     ByteBuffer(size_t dataSize)
  24.     {
  25.     	cout<<"uc";
  26.     	buffer=new char[dataSize];
  27.     	size=dataSize;
  28.     }
  29.     ByteBuffer(ByteBuffer& a){
  30.     	cout<<"cc";
  31.     	buffer=new char[a.size];
  32.     	memcpy(buffer,a.buffer,a.size);
  33.     	size=a.size;
  34.     }
  35.     ByteBuffer(ByteBuffer&& a)  
  36.     {
  37.     	cout<<"mc";
  38.     	buffer=a.buffer;
  39.     	a.buffer=nullptr;
  40.     	size=a.size;
  41.     	a.size=0;
  42.     }
  43.     ~ByteBuffer() {
  44.     	cout<<"de";
  45.         delete[] buffer;
  46.     }
  47.     ByteBuffer & operator = (ByteBuffer &a)
  48.     {
  49.     	cout<<"ca";
  50.     	delete[] buffer;
  51.     	buffer=new char[a.size];
  52.     	memcpy(buffer,a.buffer,a.size);
  53.     	size=a.size;
  54.     	return *this;
  55.     }
  56.     ByteBuffer & operator = (ByteBuffer &&a)
  57.     {
  58.     	cout<<"ma";
  59.     	delete[] buffer;
  60.     	buffer=a.buffer;
  61.     	a.buffer=nullptr;
  62.     	size=a.size;
  63.     	a.size=0;    
  64.     	return *this;
  65.     }
  66. };
  67.  
  68. ByteBuffer func ()
  69. {
  70. 	return ByteBuffer(50);
  71. }
  72.  
  73. int main()
  74. {
  75.     ByteBuffer a(50);
  76.     ByteBuffer b(50); 
  77.     cout<<"*";
  78.     b = func();
  79.     return 0;
  80. }
Success #stdin #stdout 0s 3412KB
comments (?)
stdin
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Standard input is empty
stdout
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ucuc*ucmadedede
https://ideone.com/BXrjDG
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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