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67 lines
1.1 KiB
67 lines
1.1 KiB
#include <stdint.h>
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#include <unistd.h>
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#include <iostream>
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#include <functional>
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class Device
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{
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public:
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// cllback type
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typedef std::function<unsigned int(unsigned int)> cb_t;
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Device(cb_t cb) : cb(cb)//Device(cp_t cb) : cb(cb)
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{
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};
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void do_something(void)
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{
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unsigned int return_value;
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return_value = cb(1);
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std::cout << return_value << std::endl;
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};
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private:
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cb_t cb;
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};
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class Interface
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{
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public:
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Interface()
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{
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std::cout << "created interface object" << std::endl;
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};
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unsigned int read_write(unsigned int input)
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{
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std:: cout << "calling read_write"<< std::endl;
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std::cout << input << std::endl;
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return 5;
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};
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private:
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};
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int main(void)
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{
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//using namespace std::placeholders; // for _1, _2, ...
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std::cout << "callback_example" << std::endl;
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Interface iface;
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//unsigned int ret = iface.read_write(1);
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//std::cout << ret << std::endl;
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//auto cb = std::bind(&Interface::read_write, &iface,_1);
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auto cb = std::bind(&Interface::read_write, &iface, std::placeholders::_1);
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Device device(cb);
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device.do_something();
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return 0;
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}
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