1 /* Test for builtin abs, labs, llabs, imaxabs. */
2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
3
4 #include <limits.h>
5 typedef __INTMAX_TYPE__ intmax_t;
6 #define INTMAX_MAX __INTMAX_MAX__
7
8 extern int abs (int);
9 extern long labs (long);
10 extern long long llabs (long long);
11 extern intmax_t imaxabs (intmax_t);
12 extern void abort (void);
13 extern void link_error (void);
14
15 void
main_test(void)16 main_test (void)
17 {
18 /* For each type, test both runtime and compile time (constant folding)
19 optimization. */
20 volatile int i0 = 0, i1 = 1, im1 = -1, imin = -INT_MAX, imax = INT_MAX;
21 volatile long l0 = 0L, l1 = 1L, lm1 = -1L, lmin = -LONG_MAX, lmax = LONG_MAX;
22 volatile long long ll0 = 0LL, ll1 = 1LL, llm1 = -1LL;
23 volatile long long llmin = -__LONG_LONG_MAX__, llmax = __LONG_LONG_MAX__;
24 volatile intmax_t imax0 = 0, imax1 = 1, imaxm1 = -1;
25 volatile intmax_t imaxmin = -INTMAX_MAX, imaxmax = INTMAX_MAX;
26 if (abs (i0) != 0)
27 abort ();
28 if (abs (0) != 0)
29 link_error ();
30 if (abs (i1) != 1)
31 abort ();
32 if (abs (1) != 1)
33 link_error ();
34 if (abs (im1) != 1)
35 abort ();
36 if (abs (-1) != 1)
37 link_error ();
38 if (abs (imin) != INT_MAX)
39 abort ();
40 if (abs (-INT_MAX) != INT_MAX)
41 link_error ();
42 if (abs (imax) != INT_MAX)
43 abort ();
44 if (abs (INT_MAX) != INT_MAX)
45 link_error ();
46 if (labs (l0) != 0L)
47 abort ();
48 if (labs (0L) != 0L)
49 link_error ();
50 if (labs (l1) != 1L)
51 abort ();
52 if (labs (1L) != 1L)
53 link_error ();
54 if (labs (lm1) != 1L)
55 abort ();
56 if (labs (-1L) != 1L)
57 link_error ();
58 if (labs (lmin) != LONG_MAX)
59 abort ();
60 if (labs (-LONG_MAX) != LONG_MAX)
61 link_error ();
62 if (labs (lmax) != LONG_MAX)
63 abort ();
64 if (labs (LONG_MAX) != LONG_MAX)
65 link_error ();
66 if (llabs (ll0) != 0LL)
67 abort ();
68 if (llabs (0LL) != 0LL)
69 link_error ();
70 if (llabs (ll1) != 1LL)
71 abort ();
72 if (llabs (1LL) != 1LL)
73 link_error ();
74 if (llabs (llm1) != 1LL)
75 abort ();
76 if (llabs (-1LL) != 1LL)
77 link_error ();
78 if (llabs (llmin) != __LONG_LONG_MAX__)
79 abort ();
80 if (llabs (-__LONG_LONG_MAX__) != __LONG_LONG_MAX__)
81 link_error ();
82 if (llabs (llmax) != __LONG_LONG_MAX__)
83 abort ();
84 if (llabs (__LONG_LONG_MAX__) != __LONG_LONG_MAX__)
85 link_error ();
86 if (imaxabs (imax0) != 0)
87 abort ();
88 if (imaxabs (0) != 0)
89 link_error ();
90 if (imaxabs (imax1) != 1)
91 abort ();
92 if (imaxabs (1) != 1)
93 link_error ();
94 if (imaxabs (imaxm1) != 1)
95 abort ();
96 if (imaxabs (-1) != 1)
97 link_error ();
98 if (imaxabs (imaxmin) != INTMAX_MAX)
99 abort ();
100 if (imaxabs (-INTMAX_MAX) != INTMAX_MAX)
101 link_error ();
102 if (imaxabs (imaxmax) != INTMAX_MAX)
103 abort ();
104 if (imaxabs (INTMAX_MAX) != INTMAX_MAX)
105 link_error ();
106 }
107