1 /*
2 Copyright Rene Rivera 2011-2015
3 Distributed under the Boost Software License, Version 1.0.
4 (See accompanying file LICENSE_1_0.txt or copy at
5 http://www.boost.org/LICENSE_1_0.txt)
6 */
7 #include <boost/predef/detail/test_def.h>
8
str_token(const char ** str,const char * space)9 const char * str_token(const char ** str, const char * space)
10 {
11 unsigned span;
12 char * token;
13 for (; **str != 0; *str += 1)
14 {
15 if (0 == strchr(space, **str))
16 {
17 break;
18 }
19 }
20 span = strcspn(*str, space);
21 token = (char *)malloc(span+1);
22 strncpy(token, *str, span);
23 token[span] = 0;
24 for (*str += span; **str != 0; *str += 1)
25 {
26 if (0 == strchr(space, **str))
27 {
28 break;
29 }
30 }
31 return token;
32 }
33
34 const char * whitespace = " ";
35 const char * dot = ".";
36
main(int argc,const char ** argv)37 int main(int argc, const char ** argv)
38 {
39 unsigned x = 0;
40 int argi = 1;
41 create_predef_entries();
42 #if 0
43 qsort(generated_predef_info,generated_predef_info_count,
44 sizeof(predef_info),predef_info_compare);
45 for (x = 0; x < generated_predef_info_count; ++x)
46 {
47 printf("%s: %d\n", generated_predef_info[x].name, generated_predef_info[x].value);
48 }
49 #endif
50 int result = -1;
51 for (argi = 1; argi < argc; ++argi)
52 {
53 const char * exp = argv[argi];
54 const char * exp_name = str_token(&exp, whitespace);
55 const char * exp_op = str_token(&exp, whitespace);
56 const char * exp_val = str_token(&exp, whitespace);
57 unsigned exp_version = 0;
58 if (*exp_val != 0)
59 {
60 exp = exp_val;
61 const char * exp_val_a = str_token(&exp, dot);
62 const char * exp_val_b = str_token(&exp, dot);
63 const char * exp_val_c = str_token(&exp, dot);
64 exp_version = BOOST_VERSION_NUMBER(atoi(exp_val_a), atoi(exp_val_b),atoi(exp_val_c));
65 }
66 for (x = 0; x < generated_predef_info_count; ++x)
67 {
68 if (*exp_op == 0 &&
69 generated_predef_info[x].value > 0 &&
70 strcmp(exp_name, generated_predef_info[x].name) == 0)
71 {
72 /* Expression of the form "BOOST_x_yy" is true. */
73 result = 0;
74 break;
75 }
76 else if (*exp_op == 0 &&
77 generated_predef_info[x].value == 0 &&
78 strcmp(exp_name, generated_predef_info[x].name) == 0)
79 {
80 /* Expression of the form "BOOST_x_yy" is false. */
81 return argi;
82 }
83 else if (*exp_op != 0 && *exp_val != 0 &&
84 strcmp(exp_name, generated_predef_info[x].name) == 0)
85 {
86 /* Expression of the form "BOOST_x_yy op val". */
87 result = 0;
88 if (0 == strcmp(">",exp_op) && !(generated_predef_info[x].value > exp_version)) return argi;
89 if (0 == strcmp("<",exp_op) && !(generated_predef_info[x].value < exp_version)) return argi;
90 if (0 == strcmp(">=",exp_op) && !(generated_predef_info[x].value >= exp_version)) return argi;
91 if (0 == strcmp("<=",exp_op) && !(generated_predef_info[x].value <= exp_version)) return argi;
92 if (0 == strcmp("==",exp_op) && !(generated_predef_info[x].value == exp_version)) return argi;
93 if (0 == strcmp("!=",exp_op) && !(generated_predef_info[x].value != exp_version)) return argi;
94 }
95 }
96 }
97 return result;
98 }
99