(I'm a Computer Science 101 student writing programs in C on a virtual Linux machine.)
Suppose I wanted to apply a single (arbitrary) function to every element of an array, one at a time. Doing this once is easy enough, but I'd like to find a method that could accomplish the task in a variety of scenarios. In other words, I'm trying to make a function that would do this:
/* With "array[y][x]" already defined and containing values */
int i, j;
for (j = 0; j < y; j++) {
for (i = 0; i < x; j++) {
array[j][i] = other_fxn(array[j][i], ...); } }
...rather than having to write an entirely new, array-specific version of every single function I intend to use this way. (I've typed the above code so many times that I'm SURE it can be encapsulated in a function.)
Ideally, the argument passed for other_fxn would only be limited to using array's elements one at a time and outputting the correct data type. (Example: find the square root of a[j][i] vs. divide a[j][i] by a consistent, previously specified n.) If this isn't possible, I would appreciate if someone could explain the limitations. I realize this is a rather vague question; I can provide more specific examples if neccessary.
~Curious