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Add splitmix64_test.cpp

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This commit is contained in:
Peter Dimov 2022-02-08 22:48:01 +02:00
parent cf619432a7
commit 6a5f726602
2 changed files with 41 additions and 0 deletions
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3
test/Jamfile.v2
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@ -328,5 +328,8 @@ run span_deduction_guide_test.cpp ;
run as_bytes_test.cpp ; run as_bytes_test.cpp ;
run as_writable_bytes_test.cpp ; run as_writable_bytes_test.cpp ;
run splitmix64_test.cpp
: : : $(pedantic-errors) ;
use-project /boost/core/swap : ./swap ; use-project /boost/core/swap : ./swap ;
build-project ./swap ; build-project ./swap ;

38
test/splitmix64_test.cpp Normal file
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@ -0,0 +1,38 @@
// Test for boost/core/detail/splitmix64.hpp
//
// Copyright 2022 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/core/detail/splitmix64.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/cstdint.hpp>
int main()
{
{
boost::detail::splitmix64 rng;
boost::uint64_t r1 = rng(), x1 = ( boost::uint64_t(0xe220a839u) << 32 ) + 0x7b1dcdafu;
BOOST_TEST_EQ( r1, x1 );
for( int i = 0; i < 1000; ++i ) rng();
boost::uint64_t r2 = rng(), x2 = ( boost::uint64_t(0xdcad513cu) << 32 ) + 0x211f942du;
BOOST_TEST_EQ( r2, x2 );
}
{
boost::detail::splitmix64 rng( 12345 );
boost::uint64_t r1 = rng(), x1 = ( boost::uint64_t(0x22118258u) << 32 ) + 0xa9d111a0u;
BOOST_TEST_EQ( r1, x1 );
for( int i = 0; i < 1000; ++i ) rng();
boost::uint64_t r2 = rng(), x2 = ( boost::uint64_t(0xaaefb4b6u) << 32 ) + 0x5c15e958u;
BOOST_TEST_EQ( r2, x2 );
}
return boost::report_errors();
}