I’m guessing this is to avoid lots of “unnecessary typing”. Sadly there’s no way to get rid of the scope (as many other answers have told you) however what I do personally is get the class defined with all my function prototypes in nice rows, then copy/paste into the implementation file then ctrl-c your ClassName:: … Read more
Technically, global is not a keyword: it’s a so-called “contextual keyword”. These have special meaning only in a limited program context and can be used as identifiers outside that context. global can and should be used whenever there’s ambiguity or whenever a member is hidden. From here: class TestApp { // Define a new class … Read more
Sure it can: pax$ echo ‘hello goodbye’ | gawk ‘{if ($0 == “hello”) {print “HELLO”}}’ HELLO You can also do inequality (ordered) testing as well: pax> printf ‘aaa\naab\naac\naad\n’ | gawk ‘{if ($1 < “aac”){print}}’ aaa aab
You forgot braces around the if block, and a semicolon between the statements in the block. awk ‘{if($3 != 0) {a = ($3/$4); print $0, a;} else if($3==0) print $0, “-” }’ file > out
Basically the answer is that it is how Unix has done it forever. Sure enough, if you write some Bash scripts that’s what you’ll use and it’s actually nice to have your PowerShell syntax knowledge transfer over one for one to Bash. It is answered in detail in Bruce Payette’s Windows PowerShell in Action, Second … Read more
You need to parenthesize your argument: something(‘hello’) { do_it } That should work.
Borrowed from here – Normally, you would put code to initialize an instance variable in a constructor. There are two alternatives to using a constructor to initialize instance variables: initializer blocks and final methods. Initializer blocks for instance variables look just like static initializer blocks, but without the static keyword: { // whatever code is … Read more
Personally, the most hideous problem I have seen is the invocation of template functions in dependent context: template <typename T> void foo(T t) { t.bar<3>(); } This looks admittedly simple, but in fact is incorrect. The C++ Standard requires the introduction of the template keyword to disambiguate t.bar < 3 vs a method invocation yielding: … Read more
You can use any of these: public delegate double CustomerDelegate(int test); public interface ITest { EventHandler<EventArgs> MyHandler{get;set;} CustomerDelegate HandlerWithCustomDelegate { get; set; } event EventHandler<EventArgs> MyEvent; }