yes. For small programs like you might write in first year programming courses it doesn't really matter a whole lot, unless of course you are learning how to write functions. They become very important in larger programs to keep the functions small and understandable.
In any programme of sufficient size and complexity you're likely to have a large number of functions. Quite often an organisation's coding standards provide guidelines on the length of functions, limiting their size. For example you might have a 60-line limit as a guide. It's quite normal to have lots of functions.
Most of the time you don't need to worry about the effect on performance because the overhead of function calls is small, but in some environments you might need to optimise.
As said,the overhead for function calling is negligible.And of course,that can be avoided too by declaring small functions(Small here is relative) inline.That is likely to generate a lot of object code,but is said to be faster.
That is likely to generate a lot of object code,but is said to be faster.
Until the added object code size causes excess cache misses. ;) Despite the common belief, inline functions aren't guaranteed to improve anything, and could just as easily make things worse or have no measurable effect.
The overhead of function calling is directly proportionate to the number of arguments and automatic variables declared in the function. They all have to be pushed onto the stack. Also, deep recursion will cause similar overhead. That said, you are generally better off to have a bunch of small, easily understood functions rather than just a few big/complex ones. Remember the KISS principal. It is pre-eminent in software engineering.
Write a C program that should create a 10 element array of random integers (0 to 9). The program should total all of the numbers in the odd positions of the array and compare them with the total of the numbers in the even positions of the array and indicate ...
I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...