#include 
#include 
using namespace std; 

The class Point; 
Double short (Point & amp; A, Point & amp; B) 
{
Double dx=a.x - b.x; 
Double dy=a.y - b.y; 
Return SQRT (dy dx + dy dx * *); 
} 

The class Point 
{
Public: 
Point (double xx, double yy) 
{
X=xx; 
Y=yy. 
}; 
Void Getxy (); 
Friend double short (Point & amp; A, Point & amp; B); 
Private: 
Double x, y; 
}; 

The void Point: : Getxy () 
{
Cout & lt; <"(" & lt; } 

Int main (void) 
{
Point p (3.0, 4.0), p2 (6.0, 8.0); 
P1. Getxy (); 
P2. Getxy (); 
Double d=short (p1, p2); 
Cout & lt; <"Short is" & lt; return 0; 
} 

Who knows me this code is wrong, I'm in vs verification passed, but didn't pass in the Gcc

CodePudding user response:

The realization of short to after the Point's statement
I didn't compile this VS,

 # include 
#include 
using namespace std; 

The class Point 
{
Public: 
Point (double xx, double yy) 
{
X=xx; 
Y=yy. 
}; 
Void Getxy (); 
Friend double short (Point & amp; A, Point & amp; B); 
Private: 
Double x, y; 
}; 
Double short (Point & amp; A, Point & amp; B) 
{
Double dx=a.x - b.x; 
Double dy=a.y - b.y; 
Return SQRT (dy dx + dy dx * *); 
} 

The void Point: : Getxy () 
{
Cout & lt; <"(" & lt; } 

Int main (void) 
{
Point p (3.0, 4.0), p2 (6.0, 8.0); 
P1. Getxy (); 
P2. Getxy (); 
Double d=short (p1, p2); 
Cout & lt; <"Short is" & lt; return 0; 
} 

CodePudding user response:

 # include 
using namespace std; 
The class date; 
The class time 
{
Public: 
Time (int, int, int); 
Void dispaly (date&); 
Private: 
Int hour; 
Int minute; 
Int the SEC; 
}; 
The class date 
{
Public: 
The date (int, int, int); 
Friend void time: : dispaly (date & amp;); 
Private: 
Int the month; 
Int day; 
Int year; 
}; 
Time: the time (int h, int m, int s) 
{
Hour=h; 
Minute=m; 
The SEC=s; 
} 

Void time: : display (date & amp; D) 
{
CoutCout} 
Date: the date (int m, int d, int y) 
{
The month=m; 
Day=d; 
Year=y; 
} 
Int main () 
{
Time t1 (10,13,56); 
The date (12,25,2004 d1); 
T1. Dispaly (d1); 
return 0; 
} 

Why do I this compilation, however, always appear problem, but can't find,

CodePudding user response:

There are spelling mistakes dispaly

 cout 
A less & lt; 
 cout