pointer problem

[Dreea]

Hello all! Can you help me with the following issue?
I have a pointer BYTE *input and i initialize it like that:
input=new BYTE[array_length] and then i pass the variable "input" as a parameter to a function my_function(input);
My question is how do i get the array_length value, being in my_function()?
Thanks

[sanctus]

Hello all! Can you help me with the following issue?
I have a pointer BYTE *input and i initialize it like that:
input=new BYTE[array_length] and then i pass the variable "input" as a parameter to a function my_function(input);
My question is how do i get the array_length value, being in my_function()?
Thanks

The easiest way I see (and maybe as well the less professional) is just to make the variable array_length global and then you can access it everywhere.

[TripleDES]

Hello all! Can you help me with the following issue?
I have a pointer BYTE *input and i initialize it like that:
input=new BYTE[array_length] and then i pass the variable "input" as a parameter to a function my_function(input);
My question is how do i get the array_length value, being in my_function()?
Thanks

You can just pass the length of the array as the second parameter.

void my_function(BYTE* input, unsigned int len)
{
// do something
}
 
 

If this is C++ I recommend using a STL container like vector instead of an array.

[weaknessforcats]

TripleDES has the correct solution.

Do not use a global variable.

[Dreea]

Thank you for your answers.
Meanwhile, I solved my problem by passing the length as function parameter.
I don't think that a global variable is a good idea, the function i call is from a dll linked at run-time