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FunctionPointer.h
1 /* mbed Microcontroller Library
2  * Copyright (c) 2006-2019 ARM Limited
3  * SPDX-License-Identifier: Apache-2.0
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 #ifndef MBED_FUNCTIONPOINTER_H
18 #define MBED_FUNCTIONPOINTER_H
19 
20 #include "platform/Callback.h"
21 #include "platform/mbed_toolchain.h"
22 #include <string.h>
23 #include <stdint.h>
24 
25 namespace mbed {
26 /** \addtogroup platform-public-api */
27 /** @{*/
28 /**
29  * \defgroup platform_FunctionPointer FunctionPointer class
30  * @{
31  */
32 
33 // Declarations for backwards compatibility
34 // To be foward compatible, code should adopt the Callback class
35 template <typename R, typename A1>
36 class FunctionPointerArg1 : public Callback<R(A1)> {
37 public:
38  MBED_DEPRECATED_SINCE("mbed-os-5.1",
39  "FunctionPointerArg1<R, A> has been replaced by Callback<R(A)>")
40  FunctionPointerArg1(R(*function)(A1) = 0)
41  : Callback<R(A1)>(function) {}
42 
43  template<typename T>
44  MBED_DEPRECATED_SINCE("mbed-os-5.1",
45  "FunctionPointerArg1<R, A> has been replaced by Callback<R(A)>")
46  FunctionPointerArg1(T *object, R(T::*member)(A1))
47  : Callback<R(A1)>(object, member) {}
48 
49  R(*get_function())(A1)
50  {
51  return *reinterpret_cast<R(* *)(A1)>(this);
52  }
53 
54  R call(A1 a1) const
55  {
56  if (!Callback<R(A1)>::operator bool()) {
57  return (R)0;
58  }
59 
60  return Callback<R(A1)>::call(a1);
61  }
62 
63  R operator()(A1 a1) const
64  {
65  return Callback<R(A1)>::call(a1);
66  }
67 };
68 
69 template <typename R>
70 class FunctionPointerArg1<R, void> : public Callback<R()> {
71 public:
72  MBED_DEPRECATED_SINCE("mbed-os-5.1",
73  "FunctionPointer has been replaced by Callback<void()>")
74  FunctionPointerArg1(R(*function)() = 0)
75  : Callback<R()>(function) {}
76 
77  template<typename T>
78  MBED_DEPRECATED_SINCE("mbed-os-5.1",
79  "FunctionPointer has been replaced by Callback<void()>")
80  FunctionPointerArg1(T *object, R(T::*member)())
81  : Callback<R()>(object, member) {}
82 
83  R(*get_function())()
84  {
85  return *reinterpret_cast<R(* *)()>(this);
86  }
87 
88  R call() const
89  {
90  if (!Callback<R()>::operator bool()) {
91  return (R)0;
92  }
93 
94  return Callback<R()>::call();
95  }
96 
97  R operator()() const
98  {
99  return Callback<R()>::call();
100  }
101 };
102 
103 typedef FunctionPointerArg1<void, void> FunctionPointer;
104 
105 /**@}*/
106 
107 /**@}*/
108 
109 
110 } // namespace mbed
111 
112 #endif
mbed::Callback
Callback class based on template specialization.
Definition: Callback.h:39
MBED_DEPRECATED_SINCE
#define MBED_DEPRECATED_SINCE(D, M)
MBED_DEPRECATED("message string") Mark a function declaration as deprecated, if it used then a warnin...
Definition: mbed_toolchain.h:378
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