1 #include "catch.hpp" 2 3 #include <osmium/memory/item.hpp> 4 5 TEST_CASE("padded length") { 6 REQUIRE(osmium::memory::padded_length(0) == 0); 7 REQUIRE(osmium::memory::padded_length(1) == 8); 8 REQUIRE(osmium::memory::padded_length(2) == 8); 9 REQUIRE(osmium::memory::padded_length(7) == 8); 10 REQUIRE(osmium::memory::padded_length(8) == 8); 11 REQUIRE(osmium::memory::padded_length(9) == 16); 12 13 REQUIRE(osmium::memory::padded_length(2147483647UL) == 2147483648UL); 14 REQUIRE(osmium::memory::padded_length(2147483648UL) == 2147483648UL); 15 REQUIRE(osmium::memory::padded_length(2147483650UL) == 2147483656UL); 16 17 // The following checks only make sense on a 64 bit system (with 18 // sizeof(size_t) == 8), because the numbers are too large for 32 bit. 19 // The casts to size_t do nothing on a 64 bit system, on a 32 bit system 20 // they bring the numbers into the right range and everything still works. 21 REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(4294967295ULL)) == static_cast<std::size_t>(4294967296ULL)); 22 REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(4294967296ULL)) == static_cast<std::size_t>(4294967296ULL)); 23 REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(4294967297ULL)) == static_cast<std::size_t>(4294967304ULL)); 24 25 REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(7999999999ULL)) == static_cast<std::size_t>(8000000000ULL)); 26 REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(8000000000ULL)) == static_cast<std::size_t>(8000000000ULL)); 27 REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(8000000001ULL)) == static_cast<std::size_t>(8000000008ULL)); 28 } 29 30