How can i find out the length of an array?

[pigsie]

Hi how can i find out the length of an array of characters?


Kola

 

[LiquidBinary]

If you are using an array of char's, sizeof() works just fine since it returns the # of bytes:

char array[25];
std::cout << sizeof( array ) <<
std::endl;

Mike L.G.
mlg400@linuxmail.org

 

[Zyrenthian]

sizeof will give you the correct answer there but look at this

void PrintSize(char* array)
{
cout<<sizeof(array)<<endl;
}

main()
{
char array[25];
cout<<sizeof(array)<<endl;
PrintSize(array);

}


you will see 25 and 4 output from this. strlen(array) will give you the lenght of the string contained within the array but not the full size of the array. I dont know if that is what you where looking for.

Matt

 

[pigsie]

Hi

Thanks for the reply I wanted the size of the array something which returns the length of the array. Perhaps
I am barking up the wrong tree so i'll tell you what i am trying to acheive. I need to be able to store some records in memory but give the user the ability to add/remove records etc. How i am doing this is by creating a copy of a an array every time a new record is added/deleted. I am trying to keep it simple.

Thanks

 

[fheyn]

why not use a linked list instead ? makes it much simpler.

 

[Zyrenthian]

Look into CStringList and CStringArray

Matt

 

[pigsie]

I dont know how to make a link list in c++ only java and with c++ im assuming that the link list would use pointers which i dont know much about. Also the reason i wanted to keep it simple was to teach my younger brother about c++ as hes currently trying to learn it (not that i know it but i can explain some of the concepts).

Thanks