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7c673cae | 1 | /* |
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2 | Copyright 2015 Glen Joseph Fernandes |
3 | (glenjofe@gmail.com) | |
7c673cae | 4 | |
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5 | Distributed under the Boost Software License, Version 1.0. |
6 | (http://www.boost.org/LICENSE_1_0.txt) | |
7c673cae FG |
7 | */ |
8 | #include <boost/align/align_down.hpp> | |
9 | #include <boost/align/is_aligned.hpp> | |
10 | #include <boost/core/lightweight_test.hpp> | |
11 | ||
12 | template<std::size_t Alignment> | |
13 | void test() | |
14 | { | |
15 | char s[Alignment << 1]; | |
16 | char* b = s; | |
17 | while (!boost::alignment::is_aligned(b, Alignment)) { | |
b32b8144 | 18 | ++b; |
7c673cae FG |
19 | } |
20 | { | |
21 | void* p = &b[Alignment]; | |
22 | BOOST_TEST(boost::alignment::align_down(p, Alignment) == p); | |
23 | } | |
24 | { | |
25 | void* p = &b[Alignment - 1]; | |
26 | void* q = b; | |
27 | BOOST_TEST(boost::alignment::align_down(p, Alignment) == q); | |
28 | } | |
29 | } | |
30 | ||
31 | int main() | |
32 | { | |
33 | test<1>(); | |
34 | test<2>(); | |
35 | test<4>(); | |
36 | test<8>(); | |
37 | test<16>(); | |
38 | test<32>(); | |
39 | test<64>(); | |
40 | test<128>(); | |
41 | ||
42 | return boost::report_errors(); | |
43 | } |