Viewing file:  stdarg-4.c (2.24 KB) -rw-r--r--
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#include <stdarg.h>
extern void abort (void);
long x, y;
inline void __attribute__((always_inline))
f1i (va_list ap)
{
x = va_arg (ap, double);
x += va_arg (ap, long);
x += va_arg (ap, double);
}
void
f1 (int i, ...)
{
va_list ap;
va_start (ap, i);
f1i (ap);
va_end (ap);
}
inline void __attribute__((always_inline))
f2i (va_list ap)
{
y = va_arg (ap, int);
y += va_arg (ap, long);
y += va_arg (ap, double);
f1i (ap);
}
void
f2 (int i, ...)
{
va_list ap;
va_start (ap, i);
f2i (ap);
va_end (ap);
}
long
f3h (int i, long arg0, long arg1, long arg2, long arg3)
{
return i + arg0 + arg1 + arg2 + arg3;
}
long
f3 (int i, ...)
{
long t, arg0, arg1, arg2, arg3;
va_list ap;
va_start (ap, i);
switch (i)
{
case 0:
t = f3h (i, 0, 0, 0, 0);
break;
case 1:
arg0 = va_arg (ap, long);
t = f3h (i, arg0, 0, 0, 0);
break;
case 2:
arg0 = va_arg (ap, long);
arg1 = va_arg (ap, long);
t = f3h (i, arg0, arg1, 0, 0);
break;
case 3:
arg0 = va_arg (ap, long);
arg1 = va_arg (ap, long);
arg2 = va_arg (ap, long);
t = f3h (i, arg0, arg1, arg2, 0);
break;
case 4:
arg0 = va_arg (ap, long);
arg1 = va_arg (ap, long);
arg2 = va_arg (ap, long);
arg3 = va_arg (ap, long);
t = f3h (i, arg0, arg1, arg2, arg3);
break;
default:
abort ();
}
va_end (ap);
return t;
}
void
f4 (int i, ...)
{
va_list ap;
va_start (ap, i);
switch (i)
{
case 4:
y = va_arg (ap, double);
break;
case 5:
y = va_arg (ap, double);
y += va_arg (ap, double);
break;
default:
abort ();
}
f1i (ap);
va_end (ap);
}
int
main (void)
{
f1 (3, 16.0, 128L, 32.0);
if (x != 176L)
abort ();
f2 (6, 5, 7L, 18.0, 19.0, 17L, 64.0);
if (x != 100L || y != 30L)
abort ();
if (f3 (0) != 0)
abort ();
if (f3 (1, 18L) != 19L)
abort ();
if (f3 (2, 18L, 100L) != 120L)
abort ();
if (f3 (3, 18L, 100L, 300L) != 421L)
abort ();
if (f3 (4, 18L, 71L, 64L, 86L) != 243L)
abort ();
f4 (4, 6.0, 9.0, 16L, 18.0);
if (x != 43L || y != 6L)
abort ();
f4 (5, 7.0, 21.0, 1.0, 17L, 126.0);
if (x != 144L || y != 28L)
abort ();
return 0;
}
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