O''''''''Reilly Network For Information About''''''''s Book part 5 ppsx

... people. No other platform has grown as fast and as elephantine as Java. Other platforms are as capable, but are 5% of the size. There's an architectural reason for that. And, really, ... a void. Figure 2-3 shows the many ingredients that come together to form the perfect storm. Figure 2-3. Many forces formed the combined ingredients that led to a perfect storm 2.3.1. ......

Ngày tải lên: 07/07/2014, 08:20

... arrays, for example. Such structures dramatically ease configuration and allow natural metaprogramming. 4 .5. 4. Strings 4 .5. Parting Shots Of course, you could write a whole book about ... exceptions at Version 3. 4 .5. 3. Expressing Data Programming and data go hand in hand. In most other languages, structured data becomes a natural part of an application. Part of J...

Ngày tải lên: 07/07/2014, 08:20

... prompt you for each dependency. Answer "Y," or answer "a" once for all dependencies: Attempting remote installation of 'rails' Updating Gem source index for: http://gems.rubyforge.org ... gem install rails -v 0.12.1 Ruby will start the installation process. It goes up to RubyForge (rubyforge.org) and pulls down an index including the appropriate ver...

Ngày tải lên: 07/07/2014, 08:20

... 1 def loop 2 for i in 1 5 do 3 puts i 4 callcc {|continuation| return continuation} if i= =2 5 end # cont.call returns here 6 return nil 7 end 8 9 puts "Before loop call" ... rest of the for loop, for i=3, 4, and 5.  You'll return nil. The call stack has 10 on it, so you'll return to line 10, and assign cont to nil.  Execute lines 13 and 15....

Ngày tải lên: 07/07/2014, 08:20

... generic versions in other namespaces. For example, if a namespace needs a special version for all of its types, specializations or overloads must be provided for each and every type. Otherwise, ... (third-party classes employing their own version of a reference-counter, for example). Or there may be different requirements for deallocating, such as calling another function rather...

Ngày tải lên: 07/07/2014, 08:20

... reported before the final, "My work here is done!" The reason is that as it stands, print doesn't output the value for any types other than those it was originally designed for (std::string, ... types that the variant can contain, it works perfectly. my_first_variant=24; my_first_variant=2 .52 ; my_first_variant="Fabulous!"; my_first_variant=0; After the f...

Ngày tải lên: 07/07/2014, 08:20

... } int main() { int i1=1,i2=2,i3=3,i4=4,i5 =5, i6=6,i7=7,i8=8,i9=9; (boost::bind(&nine_arguments,_9,_2,_1,_6,_3,_8,_4, _5, _7)) (i1,i2,i3,i4,i5,i6,i7,i8,i9); } In this example, you create ... algorithm from the Standard Library that exists for exactly this purpose, for_ each. To use for_ each to replace the loop, we need to use an adaptor for calling the member function r...

Ngày tải lên: 07/07/2014, 08:20

... functions is to supply separate template type arguments for the return type and the argument types for the function call. Also, there's a suffix for the name of the function class, which is an ... alternative form. If you need to write your code with maximum portability, you might also choose to use the alternative form. Let's take a look at the most [ The most interest...

Ngày tải lên: 07/07/2014, 08:20

... use this to get a pointer to a method you want to call directly. See Section 1. 15 for an example. -( IMP )methodFor:( SEL ) sel If the receiver handles the method specified by sel, this method ... otherwise NO. -(id )perform:(SEL )sel with:(id )obj1 with:(id )obj2 The same as -perform: but also provides two arguments to the method being called. -(retval_t)performv:(SEL )sel :...

Ngày tải lên: 07/07/2014, 08:20

... and line 5. Line 5. If your parent class may have an alternative way to forward the message, pass the message using the super keyword. 1.11.2 NSObject Forwarding In Cocoa, the -forward:: ... counting These methods support reference counting or return information about an object's allocation. See Section 1.12 for more information. -(id)retain Increments the receiver's...

Ngày tải lên: 07/07/2014, 08:20