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#2
rjsp2017-12-28 14:48
编译失败就应该贴出编译器给出的编译错误信息！
比如 aadd(3,5,add); 报错：cannot convert parameter 3 from 'double (__cdecl *)(double,double)' to 'double *(__cdecl *)(double,double)' 否则不知道错误所在的话，别人怎么改？  程序代码：#include <iostream> using namespace std; double add(double, double); double aadd(double, double, double (*ad)(double, double)); int main( void ) { double h = aadd(3,5,add); cout << "h = "<< h << endl; return 0; } double aadd(double a, double b, double (*ad)(double, double)) { double m = (*ad)(a, b); return m; } double add(double x, double y) { return x + y; } |
#include<iostream>
using namespace std;
double add(double, double);
double aadd(double, double, double *ad(double, double));
int main()
{
double h;
h=aadd(3,5,add);
cout << "h = "<< h << endl;
system("pause");
return 0;
}
double aadd(double a, double b, double *ad(double, double))
{
double m = *ad(a, b);
return m;
}
double add(double x, double y)
{
return x + y;
}