30 lines
1.6 KiB
C++
30 lines
1.6 KiB
C++
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#include "catch.hpp"
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#include <osmium/memory/item.hpp>
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TEST_CASE("padded length") {
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REQUIRE(osmium::memory::padded_length(0) == 0);
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REQUIRE(osmium::memory::padded_length(1) == 8);
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REQUIRE(osmium::memory::padded_length(2) == 8);
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REQUIRE(osmium::memory::padded_length(7) == 8);
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REQUIRE(osmium::memory::padded_length(8) == 8);
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REQUIRE(osmium::memory::padded_length(9) == 16);
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REQUIRE(osmium::memory::padded_length(2147483647) == 2147483648);
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REQUIRE(osmium::memory::padded_length(2147483648) == 2147483648);
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REQUIRE(osmium::memory::padded_length(2147483650) == 2147483656);
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// The following checks only make sense on a 64 bit system (with
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// sizeof(size_t) == 8), because the numbers are too large for 32 bit.
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// The casts to size_t do nothing on a 64 bit system, on a 32 bit system
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// they bring the numbers into the right range and everything still works.
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REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(4294967295)) == static_cast<std::size_t>(4294967296));
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REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(4294967296)) == static_cast<std::size_t>(4294967296));
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REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(4294967297)) == static_cast<std::size_t>(4294967304));
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REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(7999999999)) == static_cast<std::size_t>(8000000000));
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REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(8000000000)) == static_cast<std::size_t>(8000000000));
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REQUIRE(osmium::memory::padded_length(static_cast<std::size_t>(8000000001)) == static_cast<std::size_t>(8000000008));
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}
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