Vorpal Katana - Hypixel SkyBlock Wiki

Vorpal Katana

Deals +250% damage to Endermen. While holding an Enderman, damage taken from Endermen is reduced by 9%.

Skill: Soulcry RIGHT CLICK +300˽ Ferocity vs Enderman for 4s Soul Flow Cost: 1 Mana Cost: 200 Duration: 4s

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The Vorpal Katana is an epic sword for the Enderman Slayer. It is an evolution of the Voidedge Katana.

Contents

Obtaining

The Vorpal Katana can be prepared after unlocking Enderman Slayer 5. It requires 8 refined mithril, 8 Zero Void, 1 Zero Limit, and 1 Voidedge Katana to craft.

Crafting Articles

Null Edge EPIC Quick Craft Slot Allows you to craft items without collecting recipes.
8 Zero Ovoid Rares Void Edge Katana Damage: +155 Strength: +80 Critical Damage: +25% Intelligence: +200 [❁] [✎].

Deal +250% damage to Endermen. While holding an Enderman, you take 9% less damage from Endermen.

Skill: Soulcry RIGHT CLICK +300˽ Ferocity vs Enderman for 4s Soul Flow Cost: 1 Mana Cost: 200 Duration: 4s

Deal +200% damage to Endermen. While holding an Enderman, you take 6% less damage from Endermen.

Skill: Soulcry Right click Soulflow gives you +200⊖ ferocity against Endermen for 4 seconds Cost: 1 Mana Cost: 200 Duration: 4s

Recipe Tree

  • 1 Zero Edge
    • 192 Enchanted Mithril
      • 30 720 Mithril
      • 1. 024 Zero Area
      • 256 Enchanted Obsidian
        • 40 960 Obsidian
        • 1. 280 Enchanted Mithril
          • 204 800 Mithril
          • 1 Enchanted Mithril
            • 160 Enchanted Mithril
              • 25 600 Mithril
              • 128 Zero Zone
              • 32 Enchanted Obsidian
                • 5 120 Obsidian
                • 32 Zero Sphere
                • 1 Batillus

                Usage

                Skill Soulcry Right click Buy +300 ferocity against Endermen for 4 seconds. Soul Cry Cost: 1 Mana Cost: 200 Duration: 4s

                In addition to the above item skills, the Vorpal Katana has a great passive skill.

                Deal +250% damage to Endermen. While holding an Enderman, you take 9% less damage from Endermen.

                Upgrading

                This item has the ability to apply the appropriate blade enhancements:

                • Blade Spell
                • Blade Enhancement
                • Recombubrator 3000
                • French Fries Book
                • Steaming Potatoes Book
                • Warcraft
                • Gemstone

                The Vorpal Katana can be upgraded to the Atomsplit Katana when you unlock Enderman Slayer 6.

                Made of 2 Zero Blades and 1 Vorpal Katana.

                Crafting Articles

                Null Blade LEGENDAIR Quick Craft Slot Allows you to craft items without collecting recipes.
                Null Blade LEGENDAIR Gain+300%damage to endandaman. While holding the endman, the damage received from the endman is reduced by 12%.

                Skill: SoulCry Righ t-click 4 seconds Soul Jet Cost: 2 Mana Costs: 200 Effect: 4s: 4s

                Dains+250%damage to Enderman. If the endman is restrained, the damage received from the endman will be reduced by 9%.

                Deal +250% damage to Endermen. While holding an Enderman, you take 9% less damage from Endermen.

                Skill: Soulcry RIGHT CLICK +300˽ Ferocity vs Enderman for 4s Soul Flow Cost: 1 Mana Cost: 200 Duration: 4s

                Callback functions in C++

                38, 4K 26 26 Gold Badge 201 201 Silver Badge 275 275 Bronze Badge

                February 19, 2010 17:16 17, 5k 21 21 Gold Badge 92 92 Silver Badge 146 146 Bronze Badge [This] (thisPointer. com/...) explains the background of the callback function and is easy to understand.

                Answer date and time: June 14, 2019 8:19 am

                Note: Most answers are considered to be one of the options for implementing the "callback" logic in C ++, but this is not the most preferable today. 。

                12 Answers 12

                The callback is received by the callable object (see below), which is received by classes and functions and is used to select the current logic according to the call.

                What are callbacks(?) and why to use them(!)

                One of the reasons for using a callback is to describe a shared code that can be reused with different callbacks, regardless of the logic of the called function.

                Many functions of normal algorithm libraries use callbacks. For example, the for_EACH method uses a single callback for each element of the iterator spectrum:

                Template UnaryFunction for_EACH (Inputit on, Inputit Last, UnaryFunction f)

                Return f; & amp; amp; gt;< for (; first != last; ++first) < f(*first); >This can be used to increment and display the vector first by passing the appropriate Callable: 

                STD :: vector v

                Double r = 4, 0; std :: for_each (v. begin (), v. End (), [& amp; amp;] (Double & amp; amp; amp; v)< 1.0, 2.2, 4.0, 5.5, 7.2 >); std :: for_EACH (v. Begin (), v. End (), [] (Double v)< v += r; >5 6, 2 8 9, 5 11, 2< std::cout ); 
                Another usage of the callback is that a specific static/ compilation elasticity can be achieved by notifying a specific event to the call command. 

                Personally, I use a local optimization library that uses two different callbacks:

                The first is called when a slope based on the meaning of the function and the vector of the input value is required (logical callback: Determine the meaning of the function / execute the gradient).

                • The other is to be called once for each step of each method and receive specific information on the convergence of the method (notification callback).
                • Therefore, the designer of the library is not responsible for what the information passed to the software developer actually via a callback notification, and is worried about how to modify the meaning of the function. No need. The correct conclusion of these issues lies in the library user, and in fact, the library is limited and universal.

                In addition, callbacks can guarantee dynamic behavior at runtime.

                Imagine a class, game engine, which has a series of functions that are triggered when you press the button on the keyboard and a series of functions that determine the behavior of the game. If you support a callback, you can decide which impact will be executed at runtime (re).

                Invalid Player_jump (); Void Player_CROUCH (); class game_core

                Actions; // Invalid key_press (UNSIGNED KEY_ID)< std::array// Update the button binding from diet VOID UPDATE_KEYBIND (UNSIGNED KEY_ID, VOID (*New_action) ())< if(actions[key_id]) actions[key_id](); >Here, the Key_pRessed function uses a callback stored in the action to obtain the desired operation when a specific button is pressed. If the player decides to change the jump button, the engine< actions[key_id] = new_action; >>; 

                Call Update_keyBind (New_selected_key, & Amp; amp; amp; player_jump);

                In this way, this game changes the operation of Key_pressed calling (calling Player_jump) when this button is pressed. 

                See the concept of C ++ for more formal explanations: For more formal explanations, see C ++ Concepts: Callback in CPPREFERENCE.

                What are callables in C++(11)?

                In C ++ (11), various things can be called*, so you can sell callback functions in various ways:

                Function pointer (including reference to member function)

                • STD :: function objects
                • Lambda style
                • Binding
                • Function objects (classes with overloaded function calling operators ())
                • * Note: The reference to the data members is still considered to be called, but the function is not called.

                X. 1 In this message, "writing" means a syntax for declaring something like a callback and giving a name.

                Several important ways to write callbacks in detail

                • X. 2 "Calling" in a callback means a syntax for calling these objects.
                • X. 3 "Use" to use a callback is a syntax that passes an argument to a function that uses a callback.
                • Note: In C ++ 17 or later, calls such as f (.) Can be written as std :: invoke (f,.).

                The function pointer is the most basic format of callback (it may be the worst in terms of readability in terms of generality).

                1. Function pointers

                Let's look at a simple function Foo:

                int foo (int x)

                For function pointer type

                1.1 Writing a function pointer / type notation

                Return_type (*) (parameter_type_1, parameter_type_2, parameter_type_3) // The pointer type to Foo is int (*).

                In the case of a named function, the pointer type is as follows. 

                Return_type (*name) (parameter_type_1, parameter_type_2, parameter_type_3) // F_int_ t-Type: Type: Int takes an argument TypeDef int (*f_int_t) (int); // foo_p Int int (* foo_p) (int) = & amp; amp; amp; foo; // f_int_t foo_p = & amp; amp; amp; amp;

                The molding of f_int_t can also be written as follows: 

                Use f_int_t = int (*) (int) 'can also be written;

                At least for me, it becomes clear that f_int_t is a new type of alias, and it is simpler to recognize the type of function pointer. 

                And the declaration of a function that uses a function pointer type callback is as follows:

                Return // Int, refer to the function to take int as an argument. // Foobar INT FOOBAR (int x, int (*moo) (int)); // f_int is a function pointer type. If so, you can write Foobar as follows: int foobar (int x, f_int_t moo);

                The call notation corresponds to the syntax that calls a simple function: 

                1.2 Callback call notation

                int foobar (int x, int (*moo) (int))

                Int foobar (int x, int (*moo) (int)) // Int foobar (int x, f_int_t moo) analog.< return x + moo(x); // function pointer moo called using argument x >A callback function that requires a function pointer can be called using a function pointer.< return x + moo(x); // function pointer moo called using argument x >

                1.3 Callback use notation and compatible types

                It is very easy to use a function that runs a callback for a function pointer:

                int = 5; int b = foobar (a, foo); // Call Foobar as a callback to foo // int b = foobar (a, & amp; amp; amp; foo); // To foo Call Foobar as a callback of the pointer.

                 You can write a function regardless of the movement of the callback: 

                1.4 Example

                VOID TRANFORM_EVERY_INT (INT * V, UNSIGNED N, int (INT))

                If callback is possible< for (unsigned i = 0; i < n; ++i) < v[i] = fp(v[i]); >> 

                int doble_int (int x)

                int square_int (int x)< return 2*x; >int a[5] = ; transform_every_int(& amp; amp; amp; a[0], 5, double_int); // now a == ; tranform_every_int(& amp; amp; a[0], 5, square_int); // Now a ==;
                The given class C) member function pointer is a special (more complex) function pointer that requires a type C object to operate. 

                2. Pointer to a member function

                Structure C

                The reference to the member function type of the given class T is specified.< int y; int foo(int x) const < return x+y; >>; 

                2.1 Writing pointer to member function / type notation

                // Return type (t ::*) (parameter_type_1, parameter_type_2, parameter_type_3) // The reference to C :: Foo is int type (C ::*) (int).

                Here, the named member function pointer (similar to a function pointer) is as follows: 

                Return_type (T ::*name) (parameter_type_1, parameter_type_2, parameter_type_3) //. The `f_c_int` type` f_c_int`, which requires int and returns int and returns int, is as follows: Typedef int (C :: * f_c_int_t) (int x); // c_foo_p The type is the pointer to the member function that receives int and returns int to the int (C ::* c_foo_p) (int) = & amp; amp; amp; amp; amp; amp; amp; amp; amp; amp; amp; c; :: foe; // This can also be written as typeDef: f_c_int_t c_foo_p = & amp; amp; amp; c :: foo;

                Example: Declaring a function to receive reference to the callback member function as one of the arguments: 

                // c_foobar takes C_fooBar as an argument of C's member function pointer type // Here, callback returns int to C_foobar (int x, c foobar (int x, c consst & amp; amp; amp; amp; amp; amp; amp; ; C, int (C ::*MoE) (int)); // Use the above Typeef to declare in the same way: int c_foobar (int x, c contest & amp; amp; amp; amp; c, f_c_int_t moo);

                The pointer to the member function C can be called on a C-type object using a membership access operation to an un referral pointer. Note: I need a bracket! 

                2.2 Callback call notation

                int c_fooobar (int x, c contest & amp; amp; amp; C, int (C ::*moo) (int)) // int C_FOOBAR (int x, c contest & amp; amp; amp; amp; c, int (C: :*moo) (int)) analog.

                // An analog of int c_fooBar (int x, c consonst & amp; amp; amp; amp; c, f_c_int_t moo).< return x + (c.*moo)(x); // function pointer moo called for object c using argument x >Note: If there is a reference to C, the syntax is equivalent (reference to C should also be deleted):< return x + (c.*moo)(x); // function pointer moo called for object c using argument x >

                int c_foobar_2 (int x, c contest * c, int (C :: * miaow) (int)) // or equivalent: int c_foobar_2 (int x, c consst * c, int) )

                // or equivalent: int c_foobar_2 (int x, c contest * c, int (C :: * meow))< if (!c) return x; // function pointer meow called for object *c using argument x return x + ((*c).*meow)(x); >(*Meow) (x); & amp; amp; gt;< if (!c) return x; // function pointer meow called for object *c using argument x return x + (c->The callback function that requires a class T member function pointer can be called using a class T member function pointer. 

                2.3 Callback use notation and compatible types

                It is easy to use a function (similar to a function pointer) that takes a reference to the callback member function:

                C My_c; // Initialization of collectors Int a = 5; int b = c_fooobar (a, my_c, & amp; amp; amp; amp; c :: foo); // Call C_fooobar with reference to Foo as a callback 。

                 STD :: Function class is a polygong device wrapper to store, copy and call Callable. 

                3. std::function objects (header )

                The type of STD :: function object, which contains the called functions, is as follows:

                3.1 Writing a std::function object / type notation

                std :: function

                // In other words, foo :: function stdf_foo = & amp; amp; amp; foo; /: foo :: function that uses the above function declarationstdf_c_foo = & amp; amp; amp; c :: foo;The std :: function class defines the operator () function that can be used to call the target. 

                3.2 Callback call notation

                int stdf_foobar (int x, std :: function moo)

                // or int stdf_c_foobar (int x, c consst & amp; amp; amp; c, std :: function< return x + moo(x); // std::function moo called >moo)STD :: Function callback is more general than function pointers and member function pointers. This is because you can pass a different type and convert it to a STD :: function object in implicit.< return x + moo(c, x); // std::function moo called using c and x >

                3.3 Callback use notation and compatible types

                3. 3. 1 Function pointer and member function pointer

                Function pointer

                int a = 2; int b = stdf_foobar (a, & amp; amp; foo); // b == 6 (2 + (2 + 2))

                Or see the member function 

                int a = 2; c My_c; // Initialization of intensive int b = stdf_c_foobar (a, c, & amp; amp; amp; amp; c :: foo); // b == 11 == (2 + (7+ (7+ (7+) 2)

                3. 3. 2 Lambda type 

                Lambd a-type nameless closure can be stored in std :: function object:

                int a = 2; int c = 3; int b = stdf_foobar (a, [c] (int x) -& amp; gt; int; int;

                ); // b == 15 == a + (7 + c*a) == 2 + (7 + 3*2)< return 7+c*x; >3. 3. 3. 3 STD :: bind type 

                STD :: Bind type results can be passed. For example, when binding a parameter to a function calling pointer:

                int foo_2 (int x, int y)

                USING STD :: PlaceHolders :: _ 1; int a = 2; int b = stdf_fooobar (a, std :: bind (foo_2, _1, 3)); // b == 23 = 23 = 2 + (9*2 + 3 ) int c = stdf_foobar (a, std :: bind (foo_2, 5, _1)); // c == 49 = 2 + (9*5 + 2)< return 9*x + y; >You can also bind an object as an object and call for a reference to the member function: 

                int a = 2; c consst my_c; // Initialization int b = stdf_foobar (a, std :: bind (& amp; amp; amp; c :: foo, my_c, _1)); // b == 1 == 2 + (2 + 7)

                3. 3. 4 function objects 

                Compatible Operator () -A class objects with overload can be stored in STD :: function objects.

                Structure Meow

                INT operator ()) (int x)< int y = 0; Meow(int y_) : y(y_) <>int a = 11; int b = stdf_foobar (a, meow); // b == 99 == 11 + (8 * 11)< return y * x; >Fix the example of a function pointer and use Std :: Function. 

                3.4 Example

                VOID STDF_TRANFORM_EVERY_INT (int * v, unlawned n, std :: function fp)

                Because (see 3. 3), because the options to use this function have increased:< for (unsigned i = 0; i < n; ++i) < v[i] = fp(v[i]); >> 

                // Because (see 3. 3) because the number of options to use this function has increased.

                ); // Now a ==; again // USE std :: bind: int nine_x_and_y (int x, int y)< return x/2; >using std::placeholders::_1; // a の各 int に対して nine_x_and_y を呼び出し、y は毎回 4 に等しい stdf_tranform_every_int(& amp; amp; amp; a[0], 5, std::bind(nine_x_and_y, _1, 4); // Now A ==;< return 9*x + y; >When using a template, the code calling a callback can be more genera l-purpose than using Std :: Function objects. 

                4. Templated callback type

                Note that patterns are a compile-time feature, a design tool for compile-time polymorphism. Templates help you achieve dynamic runtime behavior through callbacks, but they do not cause dynamic runtime behavior.

                For example, a generalization of the std_ftransform_every_int code above can be achieved using templates:

                4.1 Writing (type notations) and calling templated callbacks

                Template void stdf_transform_every_int_templ(int * v, unsigned const n, std::function fp)

                An even more common (and simplest) syntax is to specify the callback type, which is a simple and learnable template argument:< for (unsigned i = 0; i < n; ++i) < v[i] = fp(v[i]); >> 

                Template void transform_every_int_templ(int * v, unsigned const n, F f)

                Note: the output shows the type name derived from the template type F. The implementation of type_name is shown at the end of this message.< std::cout () \n"; for (unsigned i = 0; i < n; ++i) < v[i] = f(v[i]); >> 

                The most common implementation of unary range transformation is std::transform, which is included in the standard library.

                template OutputIt transform(InputIt first1, InputIt last1, OutputIt d_first, UnaryOperation unary_op)

                return d_first; & amp; amp; gt;< while (first1 != last1) < *d_first++ = unary_op(*first1++); >std::function stdf_transform_every_int_templ The compatible types of the template callback methods are the same as those above (see 3. 4). 

                4.2 Examples using templated callbacks and compatible types

                However, when using the template version, the signature of the callbacks used may change slightly:

                // int foo (int x)

                int muh (int const & amp; amp; amp; x)< return 2+x; >int & amp; amp; amp; weft (int & amp; amp; amp; x)< return 3+x; >int a[5] = ; stdf_transform_every_int_templ(& amp; amp; amp; a[0], 5, & amp; amp; foo); // a == stdf_transform_every_int_templ(& amp; amp; amp; a[0], 5, & amp; amp; amp; muh); // a == stdf_transform_every_int_templ(& amp; amp; amp; a[0], 5, & amp; amp; amp; woof);< x *= 4; return x; >Note: std_ftransform_every_int (non-templ version, see above) works in foo but not in muh. 

                // Leave print_int empty (int * p, unsigned const n)

                for (unsigned i = 0; i< bool f< true >The simple template parameter transform_every_int_templ can be any obtainable type.< n; ++i) < std::cout std::cout

                int a[5] =

                print_int(a, 5); transform_every_int_templ(& amp; amp; a[0], 5, foo); print_int(a, 5); transform_every_int_templ(& amp; amp; amp; a[0], 5, muh); print_int(a, 5); transform_every_int_templ(& amp; amp; amp; a[0], 5, weft); print_int(a, 5); transform_every_int_templ(& amp; amp; amp; a[0], 5, [](int x) -& amp; amp; gt; int< 1, 2, 3, 4, 5 >); print_int(a, 5); transform_every_int_templ(& amp; amp; amp; a[0], 5, meow)< return x + x + x; >); print_int(a, 5); using std::placeholders::_1; transform_every_int_templ(& amp; amp; amp; a[0], 5, std::bind(foo_2, _1, 3)); print_int(a, 5); transform_every_int_templ(& amp; amp; amp; a[0], 5, std::function); print_int(a, 5);< 4 >The above code prints: 

                1 2 3 4 5 transform_every_int_templ

                3 4 5 6 7 transform_every_int_templ6 8 10 12 14 Transform_int_templ 9 11117 Transform_inteMpl & amp; Gt; Form_EVERY_INT_TEMPL(int, int)) (int, int) & amp; gt; & amp; gt; 975 1191 1407 1839 transform_evely_int_templ & amp; 841#include #include #include #include Template STD :: String Type_name () 

                type_name implementation used above

                1 911 3 3 3 Famous badges 16 16 badges 45 45 bronze badges< typedef typename std::remove_reference::type TR; std::unique_ptr own (abi::__cxa_demangle(typeid(TR).name(), nullptr, nullptr, nullptr), std::free); std::string r = own != nullptr?own.get():typeid(TR).name(); if (std::is_const::value) r += " const"; if (std::is_volatile::value) r += " volatile"; if (std::is_lvalue_reference::value) r += " &"; else if (std::is_rvalue_reference::value) r += " &&"; return r; > 
                2015/02/24 posted on 7:02. Pixel Chemicus Pixel Chemics 24, 8K 8 8 8 8 Badge 50 50 Badge 71 71 Badges Bogeyjammer: Just in case, the answer is from two parts. 1. Complete comments about "callback" including trivial events. 2. An absolute list of all kinds of Callable and methods for writing a code that implements a callback. If you do not need a detailed tutorial, the answer is not effective or "copied in a manner." Contents -"Callback in C ++". Even if shared 1 is suitable for OP, others have the chance to find the necessary share 2. Don't be shy, point out incorrect information and constructive criticism of 1 share instead o f-1.

                Answer date and time: January 14, 2016 06:24

                Bogeyjammer I'm not the first programming, but this is the first Modern C ++. This answer gave a true context to think about the role of callback in C ++. Perhaps the OP did not see many examples, but SO generally enumerates all the conclusions of questions from the inexhaustible desires of wanting to educate the fool's universe. If it is very similar to a book, you can only give advice to read a few books and practice a little.

                Answer date and time: February 25, 2016 8:35 AM

                int b = foobar (a, foo); // The reference to foo is called Foobar as a callback, is this a type mistake? Foo does not work unless it is a pointer.

                Comment: October 13, 2017 0:15 AM

                @konoufo: C ++ 11 Benchmark [Conv. Func] states that "L value like function T has the ability to convert it to PR value such as" T pointer "." The result is a function pointer. "This is a normal reorganization and is implicitly done. It is (clearly) to use a function pointer here.

                Answer date and time: October 15, 2017 11:40 AM

                This is one of the best answers I have read. Answer date and time: June 17, 2018 21:55 C language also has a callback method: function pointer

                // This is not required, but it simplifies the life indicator of the callbackType function, // which observes a Float and returns it in typedf.

                Intsallback (float variable)< float variable = 0.0f; // Do calculations // Call the callback with the variable, and retrieve the // result int result = callback(variable); // Do something with the result >int main (int argc, char ** argv)< int result; // Interpret variable return result; >Now, if we want to communicate class methods as a current exercise, announcing from pointers to these functions would have a more difficult announcement, for example:< // Pass in SomeCallback to the DoWork DoWork(&SomeCallback); >

                // This method introduces an instance of a null DoworkObjec t-object (callbackType callback) and makes it work.

                // This method introduces a void downloader object (callbackType callback) and makes it work.< // Class instance to invoke it through ClassName objectInstance; // Invocation int result = (objectInstance.*callback)(1.0f); >*callback) (1. 0f); & amp; amp; gt; Int main (int argc, char ** argv)< // Class pointer to invoke it through ClassName * pointerInstance; // Invocation int result = (pointerInstance->4. 554 1 1 Yellow icon 10 10 Silver icon 27 27 Bronze icon< // Pass in SomeCallback to the DoWork DoWorkObject(&ClassName::Method); DoWorkPointer(&ClassName::Method); >
                Reply to Feb 19, 2010 at 19:06 Ramon B. Ramon B. Ramon B. 7. 355 4 4 Gold icon 23 23 Silver icon 27 27 Bronze icon For class methods, errors are allowed. The call should be: (instance.*Callback) (1. 0f) Comment date: Sep 24, 2012 at 22:15 The disadvantage of this std::tr1: function vs. function is that the current call is typed by class. This prepares a practical implementation of work calls in a C way, when the object performing the call does not understand the class of the object being called.

                Commented on: 2013-02-22 03:00

                Yes, maybe. TYPEDEF is just rudimentary syntactic sugar to make it more readable. Without typedef, the definition of DoworkObject for function index would look like this: void download (int (*callback) (float)). For member of member, it would look like this: void download (int (className ::*callback) (float)).

                Commented on 2015-01-16 04:15

                Thank you! Rudimentary and easy to understand! Doesn't bend like the others. Commented on 2021-01-14 03:25 AM The previous editor elementally removed the desired sentence (including not making sure to make the next resume). He/it made a rudimentary copy/resume! !!)". Reviewers will have the opportunity to "edit" your suggestions, but this will actually reflect as a separate edit from what the CV is (unfortunately).

                Comment: 2021-11-01 16:11

                Scott Meyers provides a good model:

                class gamecharacter; IntualThealthCalc class gamecharacter

                InthValue () const< public: typedef std::functionHealthCalcFunc; explicit GameCharacter(HealthCalcFunc hcf = defaultHealthCalc) : healthFunc(hcf) < >Private: HealthCalcfunc HealthFunc; & amp; amp; gt ;;< return healthFunc(*this); >I think this model tells me. 

                STD :: function

                This is a "modern" method for writing a C ++ work call.<>14. 2k 2 2 Gold icon 36 36 Silver icon 60 60 Bronze icon

                Reply February 19, 2010 17:23 Karl Field Moore Carl Field Moore 8. 574 4 4 Gold icon 41 41 Silver icon 52 52 Bronze icon Which book does SM give this example? May you be healthy :) Comment: November 16, 2011 8:45 AM I was actually old, but I started making it, so as a result, I keep in mind that if you use the GC C-version, it will not work on my device (mingw). put

                = For example, 4. 0. 1, I actually use a lon g-term good work call with a C method that works very well.< 4.x, this method is not supported. Some of the dependencies I'm using won't compile without a lot of work in gcc version >Comments on August 25, 2012 0:52

                The radiation call function is sent to the function and is called at the time of the passed procedure.

                This is quite cool to create support for software used repeatedly. Almost all operating systems (such as Windows APIs) use working calls aggressively.

                For example, if you want to operate a file in the folder, call the API function with your own procedure and a procedure will be generated once for each file in the specified folder. This makes the API very flexible.

                Reply to 17:20 on February 19, 2010

                Lead Copsi Lead Copsi 562K 80 80 Gold icon 1, 2k 1, 2k Silver icon 1, 4k 1. With this answer, the average software developers will not be able to find anything. I intend to explore C ++ and almost all other languages ​​using this symbol. In fact, I don't care about this callback in general.

                Comment: December 28, 2014 1:32 AM

                The problem is how to apply the work task, not how to define it. Comment: December 21, 2020 14:59 The adopted answer is very useful and may be absolutely comprehensive. At least the OP is not.

                I would like to see an unpretentious example of writing a work call function.

                So, basically, here, you start with C ++ 11, for example, you have a std :: function, and you don't really need it for indicators that are the same as functions:

                #include #include #include VOOD PRINT_HACHE (STD :: Function Hash_calculator)

                ); Returns 0; & amp; amp; gt;< std::string strings_to_hash[] = ; for(auto s : strings_to_hash) std::cout int main() < print_hashes( [](const std::string& str) < /** lambda expression */ int result = 0; for (int i = 0; i < str.length(); i++) result += pow(31, i) * str.at(i); return result; >By the way, this model actually exists. I want to generate Print_hahess functions with various implementation of hash functions. She gets a line, returns int (this line-this hash-memory), and is actually an outline of this function as an input argument of a function that causes it, all that you need to understand from the syntax. It is a STD :: function to be shown. 

                Reply July 1, 2016 20:36

                Millen Mikit Milena Mikic 15. 2K 8 8 Gold icon 62 62 Silver icon 67 67 Bronze icon With a higher answer in all answers, I was able to understand how to use it as a member of society and how to use it. thank you.

                June 14, 2019 6:16 AM comment

                @Meharcharanshai I'm happy :) Thank you every time. June 14, 2019 9:23 Morning Comments Thanks to this, I finally understood the essence points, thank you. I believe that engineers should sometimes touch and perceive them that intentional simplification is the best professionalism so that IMO is not considered normal.

                Comment: September 29, 2020 18:58

                C ++ has no clear opinion on the revolutionary calling function. The mechanism of the tw o-sheet call is often realized by the indicators of the functions, flinting stone objects or radial calls. Programmers must develop and sell the work capacity of the work call.

                Edit based on the answer:

                Despite the negative review, this answer is not considered incorrect. I am trying to belong to another one I guide.

                In C and C ++ languages, everything is important to implement the revolutionary call function. The most famous and obvious method of implementing a revolutionary call function is to send a function indicator as a function.

                However, the functions and functions of the revolutionary call are not regarded as synonyms. The function of the function is a linguistic device, and the function of the revolutionary call is a meaningful concept. The function of the function is not considered a single method for implementing a work calling functio n-You can implement functions, including virtual functions. What is actually a work call preparing a call, for example, this is not the device used to identify and call on the function, but the context and semantics of the call. What we speak is actually considered to be a radiation call function, and in the rules, it is more assumed to be a challenge and a challenge and a challenge. A more vulnerable conceptual association includes an open control for what is actually caused. This fuzzy concept is a weak conceptual communication, and the choice of the function controlled by the caller is not the introduction of the function of the function of the knife-call function.

                For example, according to the iFormatProvider, the . NET document states that "GetFormat is a method for reverse call", which is just an ordinary method of interface. I don't think anyone actually opposes all the issues of virtual methods as a revolutionary call function. For example, GETFORMAT preparing a work calling method, for example, is not a mechanic that is sent or called, but a getForma t-method that generates an object in the semantics selected by the caller.

                Some languages ​​contain functions with obvious semantics of turnover calls, usually related to measures and event handling. In C#, for example, there is an image of an event with syntax and semantics, and the circle of the concept of a current call is clearly created. Visual Basic has a place for handles, which clearly declare methods of the working call function and are abstracted from the concepts of participants and function indicators. In these cases, the semantic concept of a revolutionary call is included in the language itself.

                In contrast, in C and C++, for example, the semantic concept of the function of a revolutionary call is not built in. The mechanism is there, but the semantic concept is not built in. But to get something more complex, including the obvious semantics of a revolutionary call, you need to build on top of it. In fact, give C++, as QT did with its own signals and slots.

                In two words, C++ has everything that is important to implement the working assignment, often very basic and elementary, with function indicators. What is not there is, for example, the main texts and functions whose semantics are specific to the current call, these are razing, emitting, handles, events +=, etc. If you come from a language with these substances, C++'s current call help will be bad for you.

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