3

I trying to fix my vector not able to push_back problem but i get this error:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/memory:1456:36: No matching constructor for initialization of 'Point'

here is my code

Class

class Point { public: int x; int y; Uint8 r; Uint8 g; Uint8 b; Point(int x, int y, Uint8 r, Uint8 g, Uint8 b) : x(x), y(y), r(r), g(g), b(b) {} Point& operator=(Point const &np){ x=np.x; y=np.y; r=np.r; g=np.g; b=np.b; return *this; } Point(const Point& point); ; };

Line maybe cause error:

std::vector<Point> temp(10);

and this also not working:

std::vector<Point> temp;

Please help

here is more error message hope this help:

/Users/sum/Documents/3407ICT_Starter_Kit_v8/ProjectOSX/Source/Week3_T.cpp:8:10: In file included from /Users/sum/Documents/3407ICT_Starter_Kit_v8/ProjectOSX/Source/Week3_T.cpp:8:

/Users/sum/Documents/3407ICT_Starter_Kit_v8/ProjectOSX/Headers/Week3_T.h:3:10: In file included from /Users/sum/Documents/3407ICT_Starter_Kit_v8/ProjectOSX/Headers/Week3_T.h:3:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/vector:265:10: In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/c++/v1/vector:265:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/__bit_reference:15:10: In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/c++/v1/__bit_reference:15:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/algorithm:627:10: In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/c++/v1/algorithm:627:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/vector:925:25: In instantiation of function template specialization 'std::__1::allocator_traits

::construct' requested here

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/vector:1028:9: In instantiation of member function 'std::__1::vector >::__construct_at_end' requested here

/Users/sum/Documents/3407ICT_Starter_Kit_v8/ProjectOSX/Source/Week3_T.cpp:466:19: In instantiation of member function 'std::__1::vector >::vector' requested here

/Users/sum/Documents/3407ICT_Starter_Kit_v8/ProjectOSX/Headers/Week3_T.h:15:5: Candidate constructor not viable: requires 5 arguments, but 0 were provided

/Users/sum/Documents/3407ICT_Starter_Kit_v8/ProjectOSX/Headers/Week3_T.h:24:5: Candidate constructor not viable: requires single argument 'point', but no arguments were provided

Improve this question

1 Answer 1

Reset to default
4

In the standard library, certain containers "fill in" values using the default constructor when the value is not given explicitly. vector<Point> temp(10) initializes the vector with 10 elements, which are filled with the default-constructed value of your type. But when you have defined this constructor:

Point(int x, int y, Uint8 r, Uint8 g, Uint8 b) : x(x), y(y), r(r), g(g), b(b)
the compiler will not implicitly define a default constructor, so no constructor is available now. You can fix the compiler error by defining another constructor:

Point(){}
Improve this answer
Sign up to request clarification or add additional context in comments.

1 Comment

Thanks, its work, not sure if i submit this code to a Windows machine still work or not? Thanks anyway, ng goi sai

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.