The web page is sitting on the client side web browser. When you click a button, the whole page is sent up to the server. Now you code behind can not only run, but modify controls, and does whatever you want. Once all that code is run, then the browser page is sent back down … Read more
Very simply, create a class that has Uczestnik as a member variable. struct UczestnikList { UczestnikList *next; UczestnikList *prev; Uczestnik val; // or Uczestnik* val; }; Now you can use the UczestnikList and traverse through it. Also note that val could be an embedded member variable or a pointer (Uczestnik* val) depending on how you … Read more
A proper implementation of getfiles (gets all the files in a directory in a dynamic array) and provides a deallocator: #include <stdio.h> #include <dirent.h> #include <string.h> #include <stdlib.h> /* returns a NULL terminated array of files in directory */ char **getfilelist(const char *dirname) { DIR *dp; char **entries = NULL; struct dirent *entry; off_t index … Read more
You do not have execute permissions for your executable. Use chmod +x ./secondo first to correct this. This question gives more detail. solved When I try to execute this code using ./secondo I am getting this error
We, beginners, should help each other.:) Here you are. The code is written in C++. So you need to investigate it and rewrite it in C yourself. #include <iostream> int main() { while ( true ) { std::cout << “Input the number of elements : “; unsigned int n; if ( not ( std::cin >> … Read more
Here is how you would do that without using a Treeview (why wouldn’t you I don’t know): void Main() { string values = @”1 14 141 141010 141020 141030 141040 141050 141060 142 142010 142020 144 1440 144010 144020 144030 144040 145020 145030 145010 “; int myValue; // Splitting and converting to a collection of … Read more
There are three things confusing you here. First the expressions: i1 = data[0]; i2 = data[p1]; Assign the character values of data[0] and data[p1] If the input is 2+4 you’re actually assigning the character values of ‘2’ and ‘+’. In ASCII “2” is represented by code-point 50 and “+” by 43. So then the expression … Read more
I think you are overwriting your websites-object in every loop with the following line: websites = new List<string> {“https://mbasic.facebook.com/groups/”+groups[i]}.GetEnumerator(); That’s why it only prints the last website. Have a look at How can I add an item to a IEnumerable collection? Furthermore this could help you, too: IEnumerable vs. IEnumerator and implementation 9 solved Launch … Read more
You have forgotten the closing brace for your main function. Note that better indentation might help you avoid this in the future. solved C++ “Expected a ‘;’ Error when creating 2 functions close to eachother
Your explanations are not enough for a precise answer. To do this, we need to know why you need a global reference to the ViewModel instance. Therefore, I will describe several options. 1) If: in general, in principle, under no circumstances is it assumed that a ViewModel can have several instances at the assembly level … Read more
You can run the program as: IFS=$’\n’ ./sort.exe $(cat file.txt) Each line of the file will then be an argument to the program (setting IFS to just newline prevents spaces in the file from being argument delimiters). Then the program can loop over argv (except for argv[0], which contains the program name) to get all … Read more
You can’t copy a C string using assignment to the pointer, you need to use strcpy(). void setname(string n) { if (n.size() >= sizeof name) { cout << “Name ” << n << ” is too long\n”; } else { strcpy(name, n.c_str()); } } Also, ptr = &name[30]; is a pointer to beyond the end … Read more
Spaghetti is a code poorly structured and which makes it hard to update because of multiple undocumented and unexpected links or dependencies. You touch it in one place and you see other things get broken or modified in an unexpected way. Just like sticky spaghetti, you pull one end and you see a number of … Read more
Introduction The use of the ‘goto’ statement in programming has been a controversial topic for many years. While it can be used to simplify certain types of programming tasks, it is generally considered to be bad practice and should be avoided. In this article, we will discuss why it is not good practice to use … Read more
Its quite easy to implement a replacement for atoi(): int strToInt(const char *text) { int n = 0, sign = 1; switch (*text) { case ‘-‘: sign = -1; case ‘+’: ++text; } for (; isdigit(*text); ++text) n *= 10, n += *text – ‘0’; return n * sign; } (Demonstration on ideone) It doesn’t … Read more