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Based on the information provided, it appears that Zoppo's advice is good.<br />
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I think, however that you should have a non-void return type. &nbsp;The return type could indicate if there was an error or not. &nbsp;One error is that you passed null for one of the pointers. &nbsp;(Although another option is to make sure the program crashes but you might want the crash to be more graceful then the default.)
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Based on the information provided, it appears that Zoppo's advice is good.

I think, however that you should have a non-void return type.  The return type could indicate if there was an error or not.  One error is that you passed null for one of the pointers.  (Although another option is to make sure the program crashes but you might want the crash to be more graceful then the default.)

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I need to know how to write a declaration, including arguments and result, for a 2-dimensional version of strlen (that is, a function that receives an array of points to char and an array size of size_t integers, and an int that specifies the number of elements in each array.<br />
Not sure if this is correct but I have: &nbsp;<br />
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2dimstrlen(char **pointers, size_t *integers, int number)<br />
<br />
can you verify if this is correct?
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I need to know how to write a declaration, including arguments and result, for a 2-dimensional version of strlen (that is, a function that receives an array of points to char and an array size of size_t integers, and an int that specifies the number of elements in each array.
Not sure if this is correct but I have:  

2dimstrlen(char **pointers, size_t *integers, int number)

can you verify if this is correct?

how to declare a 2-dimensional version of strlen

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.