alt Hacker NewsDo any of the settings actually result in "malloc" or a similar function returning NULL?
Replies
themafia • yesterday at 4:36 AM
malloc() is an interface. There are many implementations.
fulafel • yesterday at 9:42 AM
Yes.
Do any of the settings actually result in "malloc" or a similar function returning NULL?
malloc() is an interface. There are many implementations.
Yes.
malloc() and friends may always return NULL. From the man page:
If successful, calloc(), malloc(), realloc(), reallocf(), valloc(), and aligned_alloc() functions return a pointer to allocated memory. If there is an error, they return a NULL pointer and set errno to ENOMEM.
In practice, I find a lot of code that does not check for NULL, which is rather distressing.