[Bug c/13321] New: sizeof of an array argument will always return 4

["Stefani at Seibold dot net" <gcc-bugzilla at gcc dot gnu dot org>]

A sizeof of an array passed to a function with an array argument will return  
always return the wrong value 4.  
  
For example:  
  
#include <stdio.h>  
  
void func(char x[10])  
{  
        printf("sizeof(x)=%d\n",sizeof(x));  
}  
  
int main(void)  
{  
        func("012345678");  
  
        return 0;  
}  
  
The output of this program is: 4  
and not as expected: 10  
  
I know that an array will be passed as a pointer, so i think the sizeof will  
return the size of this pointer and not the size of the declared argument.  
 
The same problem occurs also in gnu c++.

-- 
           Summary: sizeof of an array argument will always return 4
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Stefani at Seibold dot net
                CC: Stefani at Seibold dot net,gcc-bugs at gcc dot gnu dot
                    org
 GCC build triplet: i586-linux-gcc
  GCC host triplet: i586-linux-gcc
GCC target triplet: i586-linux-gcc


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13321