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| subject: | NULL pointers |
KK> Just do exactly that! :)
KK> CONFIG *c;
KK> int num_of_configs = atoi(argv[1]);
KK> c = malloc(num_of_configs * sizeof(CONFIG));
KK> if(!c)
KK> {
KK> puts("Malloc error in main() for CONFIG array.");
KK> return 1;
KK> }
Is testing for a 'false pointer', ie, using the logical NOT operator
like you did above ANSI standard? I know that different compilers
represent NULL differently, and it's not necessarily (in fact, probably
isn't) a pointer with the value zero. As I understand it, a NULL
pointer just points to a predefined invalid address, which is quite
likely something outside of the bounds of allowable RAM.
I'm just wondwering whether using this shortcut will compromise code
portability- if not, I'll save typing "!=NULL" from now on. :>
... Any given program, when running, is obsolete.
___ Blue Wave/DOS v2.30 [NR]
--- Maximus 2.01wb
* Origin: Basic'ly Computers: Mooo-ing Right Along. (1:153/9)SEEN-BY: 396/1 622/419 632/371 633/260 267 270 371 634/397 635/506 728 810 SEEN-BY: 639/252 670/213 218 @PATH: 153/104 2 716 7715 140/1 270/101 396/1 633/260 635/506 728 633/267 |
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