i need help in writing a power function..

hi
i need help in writing a function
integerPower(base,exponent) that returns the value base^exponent with assuming that the exponent is a positive, nonzero integer and that the base is an integer. the function integerPower should use for or while loop to control the calculations, without using any math library functions.

re: i need help in writing a power function..

Think about what an exponent is. If I want, say, 3^7, that's 3*3*3*3*3*3*3. Generalize this for x^y, and you'll have your algorithm.

re: i need help in writing a power function..

The nice thing about this is that your function will be _much_ faster than using the built-in pow( double,double ) function. You'd be amazed at the improvement in performance in graphics code when changing from something like
to something like this
or better yet, since x^2 is used so frequently, make an inline function just for squares:
In some of my graphics and scientific computations, I've found enormous performance gains just from not using the built-in pow() function. This makes sense, since they probably use a Taylor series expanstion to deal with the genera case of a decimal power. -- Paul

re: i need help in writing a power function..

thx alot..i appreciate ur help..and thx for the hint too..it is a new piece of information..