On 02 Oct 96, Roy McNeill wrote to Paul Wankadia --



 PW> I tried to automatically determine the maximum string length by using :

 PW> int Max_Length = sizeof(String) / sizeof(char);

 PW> because it is an array of char.  What am I doing wrong?

 RM> You can't ask for the 100 figure that was written in the char

 RM> String[100] line, because a C program doesn't remember that number

 RM> once it's allocated the ram for String. (This is one of the reasons

 RM> C is fast.) To get the max length, you'll need another parameter to

 RM> your function, or a global variable, or a global #define constant.



Oh.  What if I use strdup() locally to create another string?



 RM> Exactly why do you need the max length? Why can't you work with

 RM> the length of the current string?



Eh?  I'm writing my own custom Get_Input() function and I'd like to cut down

the number of parameters that it takes -- especially the one that passes the

length of String...  The length may vary from program to program, so I have

to account for that :)



Chow.



Junyer Hakker.



--- PPoint 2.00