math library not cooperating.

[zertech]

So im trying to find the distance between 2 points ( with an x,y coordinate). So im trying to use the Pythagorean theorem. But im getting errors and not sure how to fix it.

im using this formula
http://www.purplemath.com/modules/xyplane/dist06.gif

heres the code that gives me the error.

	double distance(Node current, Node goal){
		int xA = current.x;
		int yA = current.y;

		int xB = goal.x;
		int yB = goal.y;
		double x =pow(xB-xA,2);
		double y = pow(yB-yA,2);
		double dist = sqrt(x+y);
		return dist;
	}

here's the error i get


1>------ Build started: Project: sdl, Configuration: Debug Win32 ------
1> sdl_tut_pt2.cpp
1>c:\users\sean\documents\visual studio 2010\projects\sdl\sdl\sdl_tut_pt2.cpp(172): error C2668: 'pow' : ambiguous call to overloaded function
1> c:\program files (x86)\microsoft visual studio 10.0\vc\include\math.h(583): could be 'long double pow(long double,int)'
1> c:\program files (x86)\microsoft visual studio 10.0\vc\include\math.h(535): or 'float pow(float,int)'
1> c:\program files (x86)\microsoft visual studio 10.0\vc\include\math.h(497): or 'double pow(double,int)'
1> while trying to match the argument list '(int, int)'
1>c:\users\sean\documents\visual studio 2010\projects\sdl\sdl\sdl_tut_pt2.cpp(173): error C2668: 'pow' : ambiguous call to overloaded function
1> c:\program files (x86)\microsoft visual studio 10.0\vc\include\math.h(583): could be 'long double pow(long double,int)'
1> c:\program files (x86)\microsoft visual studio 10.0\vc\include\math.h(535): or 'float pow(float,int)'
1> c:\program files (x86)\microsoft visual studio 10.0\vc\include\math.h(497): or 'double pow(double,int)'
1> while trying to match the argument list '(int, int)'
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

[Peter87]

The problem is that it doesn't know which version of pow to call. Cast the first argument to double and it should work.

[zertech]

ooooh! yeah your right. Thanks!!