The function call func(1.14, 3.33) is ambiguous because 1.14 and 3.33 are doubles and both can be converted to either int or float. Therefore the compiler does not know which function to call. You can fix this by explicitly specifying the type of the constants func(float(1.14), float(3.33)) or by changing the overload from func(float, float) … Read more
std::list<Tree<T>&>* children; Standard containers can’t store reference types. From the rest of the code, it looks like this should store Tree<T> objects. (If you wanted to refer to objects that live somewhere else, you’d have to store pointers rather than references; but this doesn’t seem to be the case here). You also have a duplicate … Read more
Headers included with one compiler are typically tailored to that compiler implementation and will not necessarily work correctly with a different compiler. So generally speaking you won’t be able use the headers that come with Visual Studio with another compiler. 7 solved Why won’t clang compile this source code that works in VS2012?
The problem wasn’t the c++ code itself, but the framework it used, in this case ROOT. If you define a pointer in a ROOT class, you have to tell the program what to do with that pointer in the case of the class being written to file. Even though the class might never be written … Read more
Based on the phrasing of your question, I’m guessing that you are unfamiliar with the concept of pointers. In C, pointer is a type that stores the memory address of another variable. The & operator retrieves the memory address of a variable. int i = 4; // < An integer variable equal to 4 int* … Read more
I have posted the same post in Nvidia CUDA forum: Link Here I reinstalled multiple times with the method from the post but still having the same “class template” problems. Then I reinstalled CUDA 9.1 and VS2017 ver 15.6.7 also with the same method and it finally works. Further problems that I encountered is in … Read more
I have come to realize that my problem really came out of stuffing two concepts into the AbstractA/ConcreteA hierarchy that didn’t belong together. Though maybe not interesting to very many, I am posting this insight for two reasons: (1) I feel I owe Chris Wohlert the answer I have found myself (2) more importantly, I’d … Read more
I think you have forgotten the () in the end of method called. Try testField.getText() or testField.getText().toString(). solved java netbeans 6.5.3 shows cannot find symbol getText
You didn’t say exactly what errors you were getting, but you added some in-line comments. It’s best to post the exact error message separately from the code (and also indicate which line it came from, and what you expected that line to do). Looking at this one: if (a.leftLeft == b.leftLeft = 0){ there is … Read more
you are passing this in method like setOnItemSelectedListener(this) means you are passing reference of listener as class but you don’t implemented listener, impalement OnItemSelectedListener like following and try, public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener 3 solved My app keeps crashing when i open it
Func f();, it prints nothing, it should print Constructor That is not true whatsoever. Here is how you create a Func: Func f; When I try to use operator() f(2) it gives me compilation error. error C2660: ‘f’ : function does not take 1 arguments. Isn’t it strange behaviour or I am missing something? Yes, … Read more
The aim of the binary search is to find the index of a number inside a sorted array in a complexity log(n). FIRST STEP : initialization You start with your sorted array : {5,10,15,20,25,30,35,40,45,50} small : is the current smallest index. At the beginning it should be 0 for a zero-based array. big : is … Read more
Return some value via return statement regardress of value of lookup[i][j]. For example, return 0 because I don’t know the correct value to return. int f(long long int arr[], long long int x, long long int y) { long long int i = x, j = y; if(lookup[i][j] == 0) { if(i == j) lookup[i][j] … Read more
It seems that you don’t have a main function defined. 0 solved Compilation on Linux – In function ‘_start’: (.text+0x20): undefined reference to ‘main’ [closed]
It has to do with operator sequencing. What the compiler thinks you’re doing is (a ? b = 3 : b) = 4 which obviously is incorrect. Instead, why not put the b on the left side, and get only the value to assign using the conditional expression, like b = a ? 3 : … Read more