Re: thread local variable

first, THANKS FOR ALL YOUR HELP!
here is a piece of original code in a DLL where the GetBuf() comes from:
//---fmt.h
class AFX_EXT_CLASS Fmt
{
public:
static const char * CommaNum( DWORD n ) ; // n to 999,999 (W/commas)
static const char * ....
};

//---fmt.cpp
static int nextBuf ;
static char workBuf[8][64] ;
char * GetBuf()
{
       nextBuf++ ;
       if( nextBuf >= 8 ) nextBuf = 0 ;
       return workBuf[nextBuf] ;
}

const char * Fmt::CommaNum( DWORD n )
{
   char * str = GetBuf() ;

   if( n >= 1000000000 )
   {
       sprintf( str , "%u,%03u,%03u,%03u" , n/1000000000 , n/1000000%1000
,
n/1000%1000 , n%1000 ) ;
   }
   else if( n >= 1000000 ) {
       sprintf( str , "%u,%03u,%03u" , n/1000000 , n/1000%1000 , n%1000 )
;
   } else if( n >= 1000 ) {
       sprintf( str , "%u,%03u" , n / 1000 , n % 1000 ) ;
   } else {
       sprintf( str , "%u" , n ) ;
   }
   return str ;
}

------------------
the Fmt::xxxx functions are called by many threads.
so the following GetBuf can fix the problem that two threads could wind up
sharing a buffer:

char * GetBuf()
{
__declspec(thread) static int nextBuf=0 ;
__declspec(thread) static char workBuf[8][64] ;

if( nextBuf >= 8 ) nextBuf = 0 ;
return (workBuf[nextBuf++]) ;
}
-- correct?
1.
can I simply remove this GetBuf(), and replace
"char*str = GetBuf()" with " __declspec(thread) char str[64] ;" in each
Fmt::xxxx function ?

2.
(a) __declspec(thread) int i ;
(b) int __declspec(thread) i ;
-- are (a) and (b) mean the same?