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Correct use of "this"? (now with "Normalize()")

ToastFlambe · 2005-08-21T15:09:18

I'm programming a Vector2 class and have this member function for normalizing a vector Vector2 & Vector2::Normalize() { return *this / this->GetLength(); } when I try to compile, the compiler throws up this error C:\Dev-Cpp\Projects\Vector2.cpp In member function `Vector2& Vector2::Normalize()': 116 C:\Dev-Cpp\Projects\Vector2.cpp no match for 'operator/' in '*(Vector2*)this / ((Vector2*)this)->Vector2::GetLength()' note C:\Dev-Cpp\Projects\Vector2.cpp:70 candidates are: Vector2 Vector2::operator/(float&) here is the operator/ function and the GetLength function Vector2 Vector2::operator/(float & rhs) { Vector2 temp; temp[0] = array[0] / rhs; temp[1] = array[1] / rhs; return temp; } const float Vector2::GetLength() const { return sqrt(array[0] * array[0] + array[1] * array[1]); } Now when I wrote the Normalize function, I figured "this" dereferenced is a Vector2 object and the return value of GetLength is a float, so that would satisfy the operator/ function. Am I not right or is that even the problem? [Edited by - Alt F4 on August 21, 2005 1:10:35 PM]

General and Gameplay Programming Programming

Started by ToastFlambe August 19, 2005 10:16 PM

11 comments, last by ToastFlambe 18 years, 8 months ago

ToastFlambe

110

Author

August 21, 2005 01:22 PM

Now I have a new (but related) problem. I modified my Vector2 class to use the implementation you guys suggested and it compiles fine. However, when I try to use the Normalize function in my test program, I get a compiler error:

70 C:\Dev-Cpp\Projects\VectorTest.cpp statement cannot resolve address of overloaded function

here is the new normalize function:

Vector2 & Vector2::Normalize(){    *this /= GetLength();    return *this;  }

In the program, I use it by simply writing

temp.Normalize();

by itself. I also have a "Rotate" function that returns a reference to *this and using it in the way above causes no problems.

iMalc

2,466

August 21, 2005 02:35 PM

You didn't forget the () did you?

"In order to understand recursion, you must first understand recursion."
My website dedicated to sorting algorithms

ToastFlambe

110

Author

August 21, 2005 03:09 PM

.........:( yes.

Correct use of "this"? (now with "Normalize()")

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Correct use of "this"? (now with "Normalize()")

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