Wolfgang Denk wd@denx.de wrote on 2010/10/21 14:02:39:
Dear Joakim Tjernlund,
In message <OF9AD66E3F.36E9C654-ONC12577C3.004134FD-C12577C3. 0041A007@transmode.se> you wrote:
Of course we could return some valid pointer like glibc does, i. e. implement something like
if (size == 0) size = 8;
or so. Do you think that would be better?
Better than NULL, but best would be a ptr that will SEGV if you try to defer it. Not the easiest to impl., perhaps ~0 will do?
The pointers you get from glibc can be read and written - they don't segfault either (and usually we cannot do this in U-Boot, as most systems have the MMU off).
OK, then if (size == 0) size = 8; is just as good as glibc then. A SEGV is better but you don't have to be perfect here