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