For asking the user a question, you can use something like printf or puts. To request numbers from the user, scanf is probably the best approach for the level you’re working at. By way of example, here’s a complete program that asks the user for a number then gives them the next number: #include <stdio.h> … Read more
In your interface you declare a property but in VP8 you have a field. Change it to public class VP8 : Controls.IVideoCodec // <– Gives Error { public List<string> test {get; set;} = new List<string>() { “1”, “2”, “3” }; public void Example() { //… } } 1 solved interface List Error “does not implement … Read more
I’m going to make a few assumptions, but I think I know what’s going on. municipio is probably an empty string. It is not null. In that case, municipio ?? (object)DBNull.Value will be an empty string, not null. However, municipio.Length > 0 ? municipio : (object)DBNull.Value has a value of DBNull.Value, which will generate a … Read more
Create C# classes that map to your json. As below: public class Data { public List<Employee> Employees { get; set; } } public class Employee { public List<EmpDetails> EmpDetailss { get; set; } } public class EmpDetails { public int Empid { get; set; } public string Empname { get; set; } public string Empdept … Read more
This dereferences an uninitialized pointer, resulting in UB: *p = i; You probably want this instead: p = &i; solved pointer behaviors in c++
char arr[] = { ‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘f’ }; printf(“%c”, arr[0]); %s says print all the characters until you find a null (treat the variable as a pointer). %c says print just one character (treat the variable as a character code) Using %s for a character doesn’t work because the character is going … Read more
scanf is defined such that On success, the function returns the number of items successfully read. This count can match the expected number of readings or fewer, even zero, if a matching failure happens. In the case of an input failure before any data could be successfully read, EOF is returned. NAME scanf, fscanf, sscanf, … Read more
This is a signature of a function. It allows you to use a function which is defined later in your code. If you want to declare a function that takes a float in argument and return an int you have to write this piece of code : int myFunction(float arg); So here, you have the … Read more
So you have power of 2 operations which can be easily converted to bit operations… no bigint lib is needed for such triviality. Let assume you got number const int n=1000000000; // number size in bytes BYTE x[n]; // number bytes let num[0] be LSW (least signifficant Word) So the operations involved are: mod: y … Read more
singleFillMoving.Series[“singleMov”].Points.DataBindY(singleMovData); That is the line of code I needed. Just needed to dig deep enough. solved Using an Array in ASP.net Graph [closed]
you call ft_strstr(“Bonjour”, “jour”); ft_strstr calls ft_memcmp(“onjour”, “jour”). ft_memcmp returns ‘o’ – ‘j’, which is not zero, so return (!ft_memcmp(++s1, s2, ft_strlen(s2)) ? s1 : NULL); returns NULL your problem is ft_strstr : I suppose you wanted to do it recursively ? If it is the case, you forgot the recursion Here’s an example of … Read more
Couldn’t you refactor it so that you have a generic method that takes a WebResponse? public T Deserialize<T>(WebResponse response) where T: new() // ensure that any type of T used has a parameterless constructor { string r = “”; using (StreamReader sr = new StreamReader(res.GetResponseStream())) { r = sr.ReadToEnd(); } JavaScriptSerializer js = new JavaScriptSerializer(); … Read more
std::vector<student_t> st; for(unsigned i = 0; i < 10; ++i) st.push_back(student_t()); std::sort(st.begin(), st.end(), &compare); You could also use this vector constructor instead of lines 1-2: std::vector<student_t> st (10 /*, student_t() */); Edit: If you want to enter 10 students with the keyboard you can write a function that constructs a student: struct student_t &enter_student() { … Read more
why we need pointer variables… No, we don’t need pointer variables until… we need one. In other words, there are many cases (or algorithms) which don’t need pointers. But soon or later you realize that pointers are needed. Well, pointers contain values, which are different from integers, different from floating point numbers and so on. … Read more
You are missing an assignment int minus(int a,int b) { int c = a – b; return c; } int main() { int a = 4; int b = 5; int d = minus(a,b); printf(“%d”, d); return 0; } 3 solved Write a function receives two arguments and returns the difference [closed]