/* Old-style comment. */
// New-style comment.
typedef float foo_t
#ifndef ZERO
#define ZERO (0.0)
#endif
#define FOO(x) ((x) + \
ZERO)
__kernel
void foo(__global const foo_t * x, __local foo_t y, const uint n)
{
barrier(CLK_LOCAL_MEM_FENCE)
if (n > 42) {
*x += y }
}