Thanks Dave. So it is safe to use variable length array in C program on
linux machine, and I suppose all GCC on linux machines conform C99
although I never switch my C compilation to C99.
Thanks and sorry for FAQ questions.
Jim
Dave Korn wrote:
On 24 April 2006 12:09, YH wrote:
Hello,
Is the following example legal in current GCC compilation for C
program? I thought the static array allocation can only used by a
Not static! That's an automatic allocation on the stack.
defined constant such as char buf[MAX_SIZE], where #define MAX_SIZE 10?
void DoSomthing(int size)
{
char buf[size];
.. do something
}
http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Variable-Length.html#Variable-Leng
th
"Variable-length automatic arrays are allowed in ISO C99, and as an extension
GCC accepts them in C89 mode and in C++"
cheers,
DaveK
