C++ error: no matching constructor for initialization of

In the line

Rectangle box2; // no default constructor, error

you are trying to invoke the default constructor of Rectangle. The compiler does not generate such a default constructor anymore, because your Rectangle has a user defined constructor that takes 2 parameters. Therefore, you need to specify the parameters, like

Rectangle box2(0,10);

The error I get when compiling your code is:

Rectangle.cpp:8:15: error: no matching function for call to ‘Rectangle::Rectangle()’ Rectangle box2;

A solution is to create a default constructor for Rectangle, since it is not automatically generated anymore due to your user defined one:

Rectangle(); // in Rectangle.h

Rectangle::Rectangle(){} // in Rectangle.cpp (or Rectangle::Rectangle() = default; in C++11)

Another solution (and the preferable one, since it doesn’t leave the data un-initialized) is to assign default arguments to your existing constructor.

Rectangle::Rectangle(double l = 0, double w = 0); // only in Rectangle.h

In this way, you make your class Default-Constructible.

Related Posts:

  1. What does the explicit keyword mean?
  2. Struct Constructor in C++?
  3. C++ struct constructor
  4. What does the explicit keyword mean?
  5. Inheriting constructors
  6. Inheriting constructors
  7. how to define -std=c++11 as default in g++
  8. no default constructor exists for class
  9. Getting error: ISO C++ forbids declaration of with no type
  10. QltAW.png
  11. Error: No instance of constructor matches the argument list
  12. expected constructor, destructor, or type conversion before ‘(’ token
  13. C++ template constructor
  14. expected identifier before string constant
  15. Creating an instance of class
  16. In C++ can constructor and destructor be inline functions?
  17. When is it safe to call this-> in constructor and destructor
  18. C++ Cannot call constructor directly in small example
  19. Here is some error with my .h file which show [Error] unterminated #ifndef when I include my class template in it
  20. What is a lambda expression in C++11?
  21. How to convert string to char array in C++?
  22. ld: symbol(s) not found for architecture x86_64 error
  23. C++ string to double conversion
  24. How do I print out the contents of a vector?
  25. ‘was not declared in this scope’ error
  26. Good input validation loop using cin – C++
  27. Is there a C++ decompiler?
  28. What is a dangling pointer?
  29. undefined reference to WinMain@16 (codeblocks)
  30. Why use ‘glad’ library for opengl initialization? [duplicate]
  31. What does `*&` in a function declaration mean?
  32. (->) arrow operator and (.) dot operator , class pointer
  33. How to reverse an std::string? [duplicate]
  34. What is the C version of RMI
  35. Difference between ‘strcpy’ and ‘strcpy_s’?
  36. What is uintptr_t data type
  37. Why am I getting this redefinition of class error?
  38. Cleanest way to copy a constant size array in c++11
  39. Difference between using Makefile and CMake to compile the code
  40. Exception Error c0000005 in VC++
  41. push_back vs emplace_back
  42. Returning multiple values from a C++ function
  43. Eclipse C++ : “Program “g++” not found in PATH”
  44. Press Enter to Continue
  45. How to trim a std::string?
  46. Parsing a comma-delimited std::string
  47. C++ BlackJack Stuck trying to program Ace
  48. Convert a String In C++ To Upper Case
  49. Is std::stoi actually safe to use?
  50. Visual Studio 2015 doesn’t have cl.exe
  51. Right way to split an std::string into a vector
  52. How to resize array in C++?
  53. C++: std does not have member “string”
  54. Fatal error: ‘stdafx.h’ file not found
  55. How do I add the MinGW bin directory to my system path?
  56. What’s the syntax for declaring an array of function pointers without using a separate typedef?
  57. Accessors and Mutators C++
  58. Error C1083: Cannot open include file: ‘stdafx.h’
  59. How do you handle a “cannot instantiate abstract class” error in C++?
  60. How to cast the size_t to double or int C++
  61. How to get Current Directory?
  62. “used without template parameters”
  63. Reading from .txt file into two dimensional array in c++
  64. C++ Error ‘nullptr was not declared in this scope’ in Eclipse IDE
  65. C++ Simple hangman game
  66. “The system cannot find the file specified” when running C++ program
  67. Remove First and Last Character C++
  68. How to get current time in milliseconds?
  69. Resizing dynamic array in c++
  70. C++ – Nested include – Avoiding ‘include nested too deeply error’
  71. Why is inherited member not allowed?
  72. Error: macro names must be identifiers using #ifdef 0
  73. Error: free(): invalid next size (fast):
  74. Error: free(): invalid next size (fast):
  75. Fastest way to Convert String to Binary?
  76. Reading data from file into an array
  77. LINK : fatal error LNK1561: entry point must be defined ERROR IN VC++
  78. Undefined reference to a static member
  79. How to sort with a lambda?
  80. stoi function gives error: std::invalid_argument at memory location 0x0035E8D8. c++
  81. Stack around the variable ‘ ‘ was corrupted
  82. The difference between cin.ignore and cin.sync
  83. casting int to char using C++ style casting
  84. How to print (using cout) a number in binary form?
  85. What is the job of autogen.sh when building a c++ package on Linux
  86. Using G++ to compile multiple .cpp and .h files
  87. LPCSTR, LPCTSTR and LPTSTR
  88. How to do std::string indexof in C++ that returns index of matching string?
  89. MSVCP120d.dll missing
  90. Modulo operator with negative values [duplicate]
  91. Finding the type of an object in C++
  92. C++ Simple Dice roll – how to return multiple different random numbers [duplicate]
  93. How can I get a file’s size in C++?
  94. Why can’t I make a vector of references?
  95. What does “-Wall” in “g++ -Wall test.cpp -o test” do?
  96. C++ equivalent of StringBuffer/StringBuilder?
  97. Struct with template variables in C++
  98. error: no member function declared in class
  99. Why does my program give “NULL used in arithmetic”
  100. no matching function to call for “getline”

Leave a Comment