> Soon as you depend on this some OS dude will fill bss with -1s so he can
> tell what was used... or some such. Seems like a bad idea to depend on
> bss being anything at all.
Of course, that OS dude would then break ISO C compatibility for his
system. The C standard requires that globals are zero-initialized
unless they are initialized explicitly. Depending on zero
initialization is as good as depending on initialization at all, at
least in standard C.
Regards,
Martin
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