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  1. 	#include <iostream>
  2. 	#include <vector>
  3. 	#include <string>
  4.  
  5. int main() {
  6. 	std::vector<bool> isPrime(600, false);
  7.  
  8. 	std::cout << "=== Construction ===" << std::endl;
  9. 	std::cout << "Capacity:\t" << isPrime.capacity() << std::endl;
  10. 	std::cout << "Size:\t\t" << isPrime.size() << std::endl;
  11. 	std::cout << "====================" << std::endl << std::endl;
  12.  
  13. 	isPrime = std::move(std::vector<bool>(100, false));
  14.  
  15. 	std::cout << "=== Move assignment ===" << std::endl;
  16. 	std::cout << "Capacity:\t" << isPrime.capacity() << std::endl;
  17. 	std::cout << "Size:\t\t" << isPrime.size() << std::endl;
  18. 	std::cout << "=======================" << std::endl << std::endl;
  19.  
  20. 	auto tmp = std::vector<bool>(50, false);
  21. 	isPrime = tmp;
  22.  
  23. 	std::cout << "=== Copy assignment ===" << std::endl;
  24. 	std::cout << "Capacity:\t" << isPrime.capacity() << std::endl;
  25. 	std::cout << "Size:\t\t" << isPrime.size() << std::endl;
  26. 	std::cout << "=======================" << std::endl << std::endl;
  27.  
  28. 	isPrime.shrink_to_fit();
  29.  
  30. 	std::cout << "=== After Shrinking ===" << std::endl;
  31. 	std::cout << "Capacity:\t" << isPrime.capacity() << std::endl;
  32. 	std::cout << "Size:\t\t" << isPrime.size() << std::endl;
  33. 	std::cout << "=======================" << std::endl << std::endl;
  34.  
  35. 	std::vector<bool>(5,false).swap( isPrime );
  36.  
  37. 	std::cout << "=== Swap assignment ===" << std::endl;
  38. 	std::cout << "Capacity:\t" << isPrime.capacity() << std::endl;
  39. 	std::cout << "Size:\t\t" << isPrime.size() << std::endl;
  40. 	std::cout << "=======================" << std::endl << std::endl;
  41.  
  42. 	std::vector<int> newVector(600, 5);
  43.  
  44. 	std::cout << "=== Construction ===" << std::endl;
  45. 	std::cout << "Capacity:\t" << newVector.capacity() << std::endl;
  46. 	std::cout << "Size:\t\t" << newVector.size() << std::endl;
  47. 	std::cout << "====================" << std::endl << std::endl;
  48.  
  49. 	newVector = std::move(std::vector<int>(100, 5));
  50.  
  51. 	std::cout << "=== Move assignment ===" << std::endl;
  52. 	std::cout << "Capacity:\t" << newVector.capacity() << std::endl;
  53. 	std::cout << "Size:\t\t" << newVector.size() << std::endl;
  54. 	std::cout << "=======================" << std::endl << std::endl;
  55.  
  56. 	auto temp = std::vector<int>(50, 5);
  57. 	newVector = temp;
  58.  
  59. 	std::cout << "=== Copy assignment ===" << std::endl;
  60. 	std::cout << "Capacity:\t" << newVector.capacity() << std::endl;
  61. 	std::cout << "Size:\t\t" << newVector.size() << std::endl;
  62. 	std::cout << "=======================" << std::endl << std::endl;
  63.  
  64. 	newVector.shrink_to_fit();
  65.  
  66. 	std::cout << "=== After Shrinking ===" << std::endl;
  67. 	std::cout << "Capacity:\t" << newVector.capacity() << std::endl;
  68. 	std::cout << "Size:\t\t" << newVector.size() << std::endl;
  69. 	std::cout << "=======================" << std::endl << std::endl;
  70.  
  71. 	std::vector<int>(5,5).swap( newVector );
  72.  
  73. 	std::cout << "=== Swap assignment ===" << std::endl;
  74. 	std::cout << "Capacity:\t" << newVector.capacity() << std::endl;
  75. 	std::cout << "Size:\t\t" << newVector.size() << std::endl;
  76. 	std::cout << "=======================" << std::endl << std::endl;
  77.  
  78. 	std::cin.get();
  79.  
  80. 	return 0;
  81.  
  82. }
Success #stdin #stdout 0s 2976KB
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=== Construction ===
Capacity:	608
Size:		600
====================

=== Move assignment ===
Capacity:	128
Size:		100
=======================

=== Copy assignment ===
Capacity:	128
Size:		50
=======================

=== After Shrinking ===
Capacity:	64
Size:		50
=======================

=== Swap assignment ===
Capacity:	32
Size:		5
=======================

=== Construction ===
Capacity:	600
Size:		600
====================

=== Move assignment ===
Capacity:	100
Size:		100
=======================

=== Copy assignment ===
Capacity:	100
Size:		50
=======================

=== After Shrinking ===
Capacity:	50
Size:		50
=======================

=== Swap assignment ===
Capacity:	5
Size:		5
=======================



	

		
	 
	
	
			

					
			
			
			
			
			
			
			
			

			
			
			
		

	
		
		

			

			                        







			
			

				

	
					
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language:

						
C++14 (gcc 8.3)

					

					

						
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13 years ago

					

					

						
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