1 /* The purpose of this code is to test argument passing of a tuple of
2 11 integers, with the break point between named and unnamed arguments
3 at every possible position. */
4
5 #include <stdarg.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8
9 static int errors = 0;
10
11 static void
verify(const char * tcase,int n[11])12 verify (const char *tcase, int n[11])
13 {
14 int i;
15 for (i = 0; i <= 10; i++)
16 if (n[i] != i)
17 {
18 printf (" %s: n[%d] = %d expected %d\n", tcase, i, n[i], i);
19 errors++;
20 }
21 }
22
23 #define STR(x) #x
24
25 #define p(i) int q##i,
26 #define P(i) n[i] = q##i;
27
28 #define p0 p(0)
29 #define p1 p(1)
30 #define p2 p(2)
31 #define p3 p(3)
32 #define p4 p(4)
33 #define p5 p(5)
34 #define p6 p(6)
35 #define p7 p(7)
36 #define p8 p(8)
37 #define p9 p(9)
38
39 #define P0 P(0)
40 #define P1 P(1)
41 #define P2 P(2)
42 #define P3 P(3)
43 #define P4 P(4)
44 #define P5 P(5)
45 #define P6 P(6)
46 #define P7 P(7)
47 #define P8 P(8)
48 #define P9 P(9)
49
50 #define TCASE(x, params, vecinit) \
51 static void \
52 varargs##x (params ...) \
53 { \
54 va_list ap; \
55 int n[11]; \
56 int i; \
57 \
58 va_start (ap, q##x); \
59 vecinit \
60 for (i = x + 1; i <= 10; i++) \
61 n[i] = va_arg (ap, int); \
62 va_end (ap); \
63 \
64 verify (STR(varargs##x), n); \
65 }
66
67 #define TEST(x) varargs##x (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
68
69 TCASE(0, p0 , P0 )
70 TCASE(1, p0 p1 , P0 P1 )
71 TCASE(2, p0 p1 p2 , P0 P1 P2 )
72 TCASE(3, p0 p1 p2 p3 , P0 P1 P2 P3 )
73 TCASE(4, p0 p1 p2 p3 p4 , P0 P1 P2 P3 P4 )
74 TCASE(5, p0 p1 p2 p3 p4 p5 , P0 P1 P2 P3 P4 P5 )
75 TCASE(6, p0 p1 p2 p3 p4 p5 p6 , P0 P1 P2 P3 P4 P5 P6 )
76 TCASE(7, p0 p1 p2 p3 p4 p5 p6 p7 , P0 P1 P2 P3 P4 P5 P6 P7 )
77 TCASE(8, p0 p1 p2 p3 p4 p5 p6 p7 p8 , P0 P1 P2 P3 P4 P5 P6 P7 P8 )
78 TCASE(9, p0 p1 p2 p3 p4 p5 p6 p7 p8 p9, P0 P1 P2 P3 P4 P5 P6 P7 P8 P9)
79
main(void)80 int main(void)
81 {
82 TEST(0);
83 TEST(1);
84 TEST(2);
85 TEST(3);
86 TEST(4);
87 TEST(5);
88 TEST(6);
89 TEST(7);
90 TEST(8);
91 TEST(9);
92
93 if (errors)
94 abort ();
95 exit (0);
96 }
97