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Nested function in C Can we have a nested function in C? What is the use of nested functions? If they exist in C does their implementation differ from compiler to compiler? You cannot define a function within another function in standard C. You can declare a function inside of a function, but it's not a nested function. gcc has a language extension that allows nested functions. They are nonstand..

Expand Python Search Path to Other Source I have just joined a project with a rather large existing code base. We develop in linux and do not use and IDE. We run through the command line. I'm trying to figure out how to get python to search for the right path when I run project modules. For instance, when I run something like: python someprojectfile.py I get ImportError: no module named core.'so..

Nullable vs. int? - Is there any difference? Apparently Nullable and int? are equivalent in value. Are there any reasons to choose one over the other? Nullable a = null; int? b = null; a == b; // this is true No difference. int? is just shorthand for Nullable, which itself is shorthand for Nullable. Compiled code will be exactly the same whichever one you choose to use. The ? form is just a shor..

How to Add a Dotted Underline Beneath HTML Text How do you underline html text so that the line beneath the text is dotted rather than the standard underline? Preferably, I would like to do this without using a separate CSS file. I'm a novice at html. It's impossible without CSS. In fact, the tag is simply adding text-decoration:underline to the text with the browser's built-in CSS. Here's what ..

Binding List to DataGridView in WinForm I have a class class Person{ public string Name {get; set;} public string Surname {get; set;} } and a List to which I add some items. The list is bound to my DataGridView. List persons = new List(); persons.Add(new Person(){Name="Joe", Surname="Black"}); persons.Add(new Person(){Name="Misha", Surname="Kozlov"}); myGrid.DataSource = persons; There is no pro..

How to make firefox headless programmatically in Selenium with python? I am running this code with python, selenium, and firefox but still get 'head' version of firefox: binary = FirefoxBinary('C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe', log_file=sys.stdout) binary.add_command_line_options('-headless') self.driver = webdriver.Firefox(firefox_binary=binary) I also tried some variation..

Inspecting standard container (std::map) contents with gdb Supposing to have something like this: #include int main(){ std::map m; m[1] = 2; m[2] = 4; return 0; } I would like to be able to inspect the contents of the map running the program from gdb. If I try using the subscript operator I get: (gdb) p m[1] Attempt to take address of value not located in memory. Using the find method does not y..

Java Thread Garbage collected or not This question was posted on some site. I didnt find right answers there, so I am posting it here again. public class TestThread { public static void main(String[] s) { // anonymous class extends Thread Thread t = new Thread() { public void run() { // infinite loop while (true) { try { Thread.sleep(1000); } catch (InterruptedException e) { } // as long as this..

What is the difference between session_unset() and session_destroy() in PHP? From the php.net documentation: session_destroy — Destroys all data registered to a session session_unset — Free all session variables My three part question is: The two functions seem very similar. What is really the difference between the two? Both seem to delete all variables registered to a session. Does any of them..

Monitor vs lock When is it appropriate to use either the Monitor class or the lock keyword for thread safety in C#? EDIT: It seems from the answers so far that lock is short hand for a series of calls to the Monitor class. What exactly is the lock call short-hand for? Or more explicitly, class LockVsMonitor { private readonly object LockObject = new object(); public void DoThreadSafeSomethingWit..