Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/gcc.dg/range.h @ 131:84e7813d76e9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children
comparison
equal deleted inserted replaced
111:04ced10e8804 131:84e7813d76e9
1 #ifndef RANGE_H
2
3 /* Definitions of helper functions and macros to create expressions
4 in a specified range. Not all the symbols declared here are
5 defined. */
6
7 #define SIZE_MAX __SIZE_MAX__
8 #define DIFF_MAX __PTRDIFF_MAX__
9 #define DIFF_MIN (-DIFF_MAX - 1)
10
11 typedef __INT32_TYPE__ int32_t;
12 typedef __PTRDIFF_TYPE__ ptrdiff_t;
13 typedef __SIZE_TYPE__ size_t;
14
15 static inline ptrdiff_t signed_value (void)
16 {
17 extern volatile ptrdiff_t signed_value_source;
18 return signed_value_source;
19 }
20
21 static inline size_t unsigned_value (void)
22 {
23 extern volatile size_t unsigned_value_source;
24 return unsigned_value_source;
25 }
26
27 static inline ptrdiff_t signed_range (ptrdiff_t min, ptrdiff_t max)
28 {
29 ptrdiff_t val = signed_value ();
30 return val < min || max < val ? min : val;
31 }
32
33 static inline ptrdiff_t signed_anti_range (ptrdiff_t min, ptrdiff_t max)
34 {
35 ptrdiff_t val = signed_value ();
36 return min <= val && val <= max ? min == DIFF_MIN ? max + 1 : min - 1 : val;
37 }
38
39 static inline size_t unsigned_range (size_t min, size_t max)
40 {
41 size_t val = unsigned_value ();
42 return val < min || max < val ? min : val;
43 }
44
45 static inline size_t unsigned_anti_range (size_t min, size_t max)
46 {
47 size_t val = unsigned_value ();
48 return min <= val && val <= max ? min == 0 ? max + 1 : min - 1 : val;
49 }
50
51 #define SR(min, max) signed_range ((min), (max))
52 #define UR(min, max) unsigned_range ((min), (max))
53
54 #define SAR(min, max) signed_anti_range ((min), (max))
55 #define UAR(min, max) unsigned_anti_range ((min), (max))
56
57 #endif /* RANGE_H */