see: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1653.htm
macro.c:
#define x 3
#define f(a) f(x * (a))
#undef x
#define x 2
#define g f
#define z z[0]
#define h g(~
#define m(a) a(w)
#define w 0,1
#define t(a) a
f(y+1) + f(f(z)) % t(t(g)(0) + t)(1);
g(x+(3,4)-w) | h 5) & m
(f)^m(m);
results in:
f(2 * (y+1)) + f(2 * (f(2 * (z[0])))) % f(2 * (0)) + t(1);
f(2 * (2+(3,4)-0,1)) | f(2 * (~ 5)) & f(2 * (0,1))^m(0,1);
but TCC -E hangs and result as:
f ( 2 * ( y + 1 ) ) + f ( 2 * ( f ( 2 * ( z [ 0 ] [ 0 ] [ 0 ] ) ) ) ) % f (
2 *
( 0 ) ) + t ( 1 ) ;
f ( 2 * ( 2 + ( 3 , 4 ) - 0 , 1 ) ) | macro.c:12: memory full
PS: [EMAIL PROTECTED] post a macro substitution bug on 12/18/07, it do
not fix yet; there is a patch in Rob's mail-list.
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