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此程序旨在爲C++程序員模擬電路創建一個庫。任何反饋意見。我面臨的錯誤讓我困惑不已。boost ::函數模板類
wire.h文件
template<typename S>
class wire
{
public:
// default constructor
wire() : _s() {}
// constructor with one parameter of type S
wire(S s) : _s(&s) {}
// converter to signal
operator S() const { return *_s; }
// resets the signal of the wire and return the signal
S operator()(S s) { *_s = s; return s; }
private:
// pointer to signal being carried
S *_s;
};
// functor, returns the negation of the negation of the signal of the wire as a wire
template<typename W>
struct ww_not
{
W operator()(W w1) const { return ~w1; };
};
的main.cpp
#include <iostream>
#include <boost/function.hpp>
#include "wire.h"
typedef unsigned sig_type;
typedef wire<sig_type> wire_type;
main()
{
sig_type s1(0x2), s2(0x3), s3(0x5), s4(0x7), s5(0xb), s6(0xc), s7(0x11);
wire_type w1(s1), w2(s2), w3(s3), w4(s4), w5(s5), w6(s6), w7(s7);
boost::function<wire_type (wire_type)> _not;
//_not = &ww_not;
// error missing template type
_not = &ww_not<wire_type>;
// error: expected primary-expression before ';' token
}
我已經嘗試過幾種不同的方式,它應該工作。
有時它容易被人忽視的明顯。 – 2011-12-21 17:19:56