/*
 * C-FFI variadic test fixture (C1, catB-54). A va_arg(double) summer the
 * ww caller links against to prove the SysV AL=XMM-count fix: the callee
 * gates its xmm-save-area stores on `test %al,%al`, so a wrong AL makes
 * these va_arg(double) reads pull garbage.
 *
 * Built self-contained (zero relocs, zero undef syms) so w6l can link it
 * with no libc — verified via readelf -r / nm. Do not add any call that
 * pulls in a libc symbol.
 */
#include <stdarg.h>

double
fixture(long n, ...)
{
	va_list ap;
	double s;
	long i;

	va_start(ap, n);
	s = 0;
	for(i = 0; i < n; i++)
		s += va_arg(ap, double);
	va_end(ap);
	return s;
}