This class provides a function object adaptor for three other functors. When given two adaptable unary functions g1 and g2, and a third adaptable binary function f, and if g1 and g2s argument type is convertible to fs argument type, this class can be used to create a function object h that is equivalent to f(g1(x), g2(x)).
Declared in <bslstp_exfunctional.h>
template<
class OPERATION1,
class OPERATION2,
class OPERATION3>
class binary_compose;| Name | Description |
|---|---|
argument_type | This typedef is an alias to OPERATION2::argument_type. |
result_type | This typedef is an alias to OPERATION1::result_type. |
| Name | Description |
|---|---|
binary_compose [constructor] | Create a binary_compose object from the specified fn1, fn2, and fn3 functors. |
operator() | Function call operators |
| Name | Description |
|---|---|
d_fn1 | First functor f in the composition f(g1(x), g2(x)). |
d_fn2 | Second functor g1 in the composition f(g1(x), g2(x)). |
d_fn3 | Third functor g2 in the composition f(g1(x), g2(x)). |
| Name | Description |
|---|---|
compose2 | Return a binary_compose function object constructed using the specified fn1 binary function, and the specified fn2 and fn3 unary functions. The returned function object is equivalent to fn1(fn2(x), fn3(x)). |