PlusCallback Reference

PlusCallback is contained in the namespace cb. Each class and function is defined multiple times, once for each number of parameters.

Class CallbackX<R, A, B, C, etc>

where X is the number of parameters, R is the return type, and A, B, C, etc are the parameter types.

Constructors:

Method Description Example
CallbackX(Object, Method) Constructs a new callback to point to an object’s method. cb::Callback2<float, float, float> test(&Object, &Class::Method);
CallbackX(Function) Constructs a new callback to point to a free function. cb::Callback0<int> test(std::rand);
CallbackX() Constructs a new callback pointing to null for use later. cb::Callback2<float, float, float> test();
CallbackX(const CallbackX& rhs) Copy constructor. cb::Callback2<float, float, float> test2(test1);

Operators:
Note that comparisons operators may not work for callbacks that point to virtual methods.

Method Description Example
operator=(const CallbackX& rhs) Assignment operator. test1 = test2; test = std::rand;
bool operator==(const CallbackX& rhs) Equality operator. test1 == test2;
bool operator=!(const CallbackX& rhs) Inequality operator. test1 != test2;
bool operator<(const CallbackX& rhs) Less than operator. test1 < test2;
R operator()(Parameters) Function call operator. Equivalent to the Call method. test1(); a = test2(1.4, 1.8);

Methods:

Method Description Example
R Call(Parameters) Function call operator.
Equivalent to the function call operator.		 test1.Call(); a = test2.Call(1.4, 1.8);
bool IsSet() Returns true if the callback is set to a function or method. Returns false if the callback is set to null. test.IsSet();
Reset(Object, Method) Points the callback to an object’s method. test.Reset(&Object, &Class::Method);
Reset(Function) Points the callback to a free function. test.Reset(std::rand);
Reset() Points the callback to null for use later. test.Reset();

Function MakeX

where X is the number of parameters. Types are automatically inferred. These functions can be very convenient for constructing a callback to immediately pass to another function.

Function Description Example
MakeX(Object, Method) Returns a new callback to point to an object’s method. test = Make0(&Object, &Class::Method);
MakeX(Function) Returns a new callback to point to a free function. test = Make0(std::rand);

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