Hi,
If I have just an array, such as "data[]", is there a way to find the number of elements in this array?
In my program, I receive the "data[]" via sockets, but I don't know the number of elements in the array, so is there a function that can do this? All I have is just "data[]".
Thanks!!!
Masoug
Find The Number of Elements in an Array
Page 1 of 15 Replies  4530 Views  Last Post: 07 August 2010  09:48 PM
Replies To: Find The Number of Elements in an Array
#2
Re: Find The Number of Elements in an Array
Posted 06 August 2010  12:23 AM
What about the classic way of calculating the length of array? sizeof(data) / sizeof (type of data) ?
#3
Re: Find The Number of Elements in an Array
Posted 06 August 2010  12:28 AM
sizeof(data) / sizeof (type of data)
If the data is being passed as a pointer which most arrays are then your going to have to find a different way.
What about receiving a number and then the array? The number being the amount of elements.
#4
Re: Find The Number of Elements in an Array
Posted 06 August 2010  02:31 AM
Are you using C or C++?
in C, you would normally either use a sentinel object/value at the end of the data in your array, or a size_t variable to keep track of the number of stored elements.
in C++, you would use a vector (a C++ array), and use the .size() function.
in C, you would normally either use a sentinel object/value at the end of the data in your array, or a size_t variable to keep track of the number of stored elements.
in C++, you would use a vector (a C++ array), and use the .size() function.
#5
Re: Find The Number of Elements in an Array
Posted 06 August 2010  04:20 AM
#6
Re: Find The Number of Elements in an Array
Posted 07 August 2010  09:48 PM
Thanks a lot guys!
I just defined a constant number that all the programs would use.
Masoug
I just defined a constant number that all the programs would use.
Masoug
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