Jump to content
  • Advertisement

Archived

This topic is now archived and is closed to further replies.

xorjesus

What is the int/long version of strlen()?

This topic is 5275 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Good morning, how can I find out what is the last element in an int/long array? How can the computer know when one integer array begins, and when another ends? In strings there''s the null terminator(0) but all I found were random addresses for int/long arrays, or the address of another int/long array i allocated earlier in the program.

Share this post


Link to post
Share on other sites
Advertisement
If you''ve got a local array it''s possible through the sizeof operator.


int list[] = { 1, 2, 3 };
int count = sizeof(list) / sizeof(list[0]);


But normally it doesn''t, you''ll have to keep track of it yourself.

Share this post


Link to post
Share on other sites
Well if your talking about C strickly, there isn't way to tell from the array alone it's size except for as you said your self C style strings end with the null character '\0'. I guess this has something to do with with passing arrays in a function if thats the case you should also provide another parameter that will tell it's size like:

C style:


#include <stddef.h>
void foobar(int array[], size_t size);


If you don't like this then you could make structure that has a pointer to some type and the size of the array when constructed, then make some functions that will create, destroy, manipulate them.

If your using C++ then its been recommended to avoid using raw dynamic arrays use a vector it provides a methods to find out stuff like it's size etc.

[edited by - snk_kid on June 9, 2004 5:26:47 AM]

Share this post


Link to post
Share on other sites

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!