Problem using array_traits.hpp

From: Daryle Walker (darylew_at_[hidden])
Date: 2001-02-11 13:13:29

The newest version of Boost had some namespace fixes for "array_traits.hpp,"
so I decided to try it out on my CRC code.  I have these variables:

> unsigned char const  data[] = { 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
> 0x38, 0x39 };
> std::size_t const    data_len = boost::size( data );

The problem was I got an error for using "boost::size":

> Error   : function call 'size(const unsigned char *)' does not match
> 'boost::size(T0 &)'
> 'boost::size(T0[{targ_expr}] &)'
> 'boost::size(const T0[{targ_expr}] &)'
> crc_test.cpp line 37   std::size_t const    data_len = boost::size( data );
> 

I actually only had two failed "boost::size" functions, but I got the third
after temporarily #defining "__GNUC__".

I've gone back to the "sizeof(data)/sizeof(data[0])" workaround, but why did
my code treat "data" as a pointer decay instead of an array reference?  Is
my compiler, Metrowerks CodeWarrior Pro 5.3 for the Mac OS, too old?

-- 
Daryle Walker
Mac, Internet, and Video Game Junkie
darylew AT mac DOT com