function-parameter

I know that minimum number of parameters in function definition is zero, but what is the maximum number of parameters in function definition? I am asking the question just for the sake of knowledge and out of curiosity, not that I am going to write a real function. Yes, there are limits imposed by the implementation. Your answer is given in the bold text in the following excerpt from the C++ Standard. 1. C++ Language Annex B - Implementation quantities Because computers are finite, C + + implementations are inevitably limited in the size of the programs they can successfully process. Every

I have a function that takes optional arguments as name/value pairs. function example(varargin) % Lots of set up stuff vargs = varargin; nargs = length(vargs); names = vargs(1:2:nargs); values = vargs(2:2:nargs); validnames = {'foo', 'bar', 'baz'}; for name = names validatestring(name{:}, validnames); end % Do something ... foo = strmatch('foo', names); disp(values(foo)) end example('foo', 1:10, 'bar', 'qwerty') It seems that there is a lot of effort involved in extracting the appropriate values (and it still isn't particularly robust again badly specified inputs). Is there a better way of

When using variable-Length Array as parameter in function int sum(int n, int a[n]); it is easy to understand first parameter( n ) specifies the length of the second parameter( a ). But encountered with another prototype used for VLAs as parameter int sum(int n, int a[*]); is really difficult to understand why * is used instead of n inside [] ? The [*] syntax is intended to be used when declaring function prototypes . The key detail here is that in function prototypes you are not required to name your parameters, you just have to specify the type of each parameter. In your example, if you leave

How can I use a Python list (e.g. params = ['a',3.4,None] ) as parameters to a function, e.g.: def some_func(a_char,a_float,a_something): # do stuff You can do this using the splat operator: some_func(*params) This causes the function to receive each list item as a separate parameter. There's a description here: http://docs.python.org/tutorial/controlflow.html#unpacking-argument-lists This has already been answered perfectly, but since I just came to this page and did not understand immediately I am just going to add a simple but complete example. def some_func(a_char, a_float, a_something):