Peter Xu <pet...@redhat.com> writes: > On Wed, Mar 09, 2016 at 09:34:50AM +0100, Markus Armbruster wrote: >> Peter Xu <pet...@redhat.com> writes: >> > It's dynamically allocated in stack, can we still use ARRAY_SIZE in >> > this case? >> >> ARRAY_SIZE(x) is defined as (sizeof(x) / sizeof((x)[0])). Works when x >> is of array type (variable length array is fine). Screws up when x is >> of *pointer* type. >> >> C99 6.5.3.4: >> >> The sizeof operator yields the size (in bytes) of its operand, which >> may be an expression or the parenthesized name of a type. The size >> is determined from the type of the operand. The result is an >> integer. If the type of the operand is a variable length array >> type, the operand is evaluated; otherwise, the operand is not >> evaluated and the result is an integer constant. > > Good to know it. Thanks! :) > > However, ARRAY_SIZE() still cannot help solving the unbounded stack > issue, right?
Measuring the size of the array doesn't change the size of the array :)
