Hi, наб! On 9/14/21 2:41 PM, наб wrote:
A stack lasts from some high point until it runs off the back of the pages allocated, making detecting errors impossible, save for actually trying to access said unallocated page Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@xxxxxxxxxxxxxxxxxx> --- man3/alloca.3 | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/man3/alloca.3 b/man3/alloca.3 index 71348e609..20761b079 100644 --- a/man3/alloca.3 +++ b/man3/alloca.3 @@ -163,10 +163,11 @@ The inlined code often consists of a single instruction adjusting the stack pointer, and does not check for stack overflow. Thus, there is no NULL error return. .SH BUGS -There is no error indication if the stack frame cannot be extended. -(However, after a failed allocation, the program is likely to receive a +Due to the nature of the stack, it is impossible to check if the allocation +would overflow the space available, and, hence, neither is indicating an error.
I'm not sure this use of neither (without a preceding "not") is valid English. Is it?
Cheers, Alex
+(However, the program is likely to receive a .B SIGSEGV -signal if it attempts to access the unallocated space.) +signal if it attempts to access unavailable space.) .PP On many systems .BR alloca ()
-- Alejandro Colomar Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/ http://www.alejandro-colomar.es/
