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Merged
mborland merged 3 commits into from
Mar 2, 2026
+108 −14
Merged

Add additional modules testing #339

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4e5adc1
Add bit test
mborland Feb 26, 2026
54ef382
Test and fix export of div
mborland Feb 26, 2026
8cbbbc6
Add additional module tests
mborland Mar 2, 2026
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8 changes: 4 additions & 4 deletions include/boost/int128/cstdlib.hpp
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Expand Up @@ -10,19 +10,19 @@
namespace boost {
namespace int128 {

struct u128div_t
BOOST_INT128_EXPORT struct u128div_t
{
uint128_t quot;
uint128_t rem;
};

struct i128div_t
BOOST_INT128_EXPORT struct i128div_t
{
int128_t quot;
int128_t rem;
};

constexpr u128div_t div(const uint128_t x, const uint128_t y) noexcept
BOOST_INT128_EXPORT constexpr u128div_t div(const uint128_t x, const uint128_t y) noexcept
{
if (BOOST_INT128_UNLIKELY(x == 0U || y == 0U))
{
Expand Down Expand Up @@ -54,7 +54,7 @@ constexpr u128div_t div(const uint128_t x, const uint128_t y) noexcept
}
}

constexpr i128div_t div(const int128_t x, const int128_t y) noexcept
BOOST_INT128_EXPORT constexpr i128div_t div(const int128_t x, const int128_t y) noexcept
{
if (BOOST_INT128_UNLIKELY(x == 0 || y == 0))
{
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9 changes: 9 additions & 0 deletions module/Jamfile
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Expand Up @@ -27,3 +27,12 @@ project
obj int128 : int128.cxx : <toolset>msvc:<cxxflags>-interface ;

run quick_test.cpp int128 : : : <dependency>int128 ;
run ../test/test_bit.cpp int128 : : : <dependency>int128 ;
run ../test/test_div.cpp int128 : : : <dependency>int128 ;
run ../test/test_gcd_lcm.cpp int128 : : : <dependency>int128 ;
run ../test/test_i128.cpp int128 : : : <dependency>int128 ;
run ../test/test_i128_no_sign_conv.cpp int128 : : : <dependency>int128 ;
run ../test/test_limits_i128.cpp : : : <dependency>int128 ;
run ../test/test_limits_u128.cpp : : : <dependency>int128 ;
run ../test/test_literals.cpp : : : <dependency>int128 ;
run ../test/test_midpoint.cpp : : : <dependency>int128 ;
11 changes: 10 additions & 1 deletion test/test_bit.cpp
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Expand Up @@ -2,10 +2,19 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#include <boost/core/lightweight_test.hpp>

#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128/int128.hpp>
#include <boost/int128/bit.hpp>
#include <boost/int128/iostream.hpp>
#include <boost/core/lightweight_test.hpp>

#else

import boost.int128;

#endif

void test_has_single_bit()
{
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29 changes: 20 additions & 9 deletions test/test_div.cpp
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Expand Up @@ -2,7 +2,18 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#include <boost/int128.hpp>
#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128/int128.hpp>
#include <boost/int128/cstdlib.hpp>
#include <boost/int128/iostream.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <random>

Expand Down Expand Up @@ -48,22 +59,22 @@ void test_unsigned_div()
BOOST_INT128_UNREACHABLE; // LCOV_EXCL_LINE
}

const auto div_res {div(lhs, rhs)};
const auto div_res {boost::int128::div(lhs, rhs)};
BOOST_TEST_EQ(div_res.quot, lhs / rhs);
BOOST_TEST_EQ(div_res.rem, lhs % rhs);

const auto inv_div_res {div(rhs, lhs)};
const auto inv_div_res {boost::int128::div(rhs, lhs)};
BOOST_TEST_EQ(inv_div_res.quot, rhs / lhs);
BOOST_TEST_EQ(inv_div_res.rem, rhs % lhs);
}

uint128_t lhs {dist(rng), dist(rng)};
uint128_t zero {dist(rng) * 0U, dist(rng) * 0U};
const auto lhs_num {div(lhs, zero)};
const auto lhs_num {boost::int128::div(lhs, zero)};
BOOST_TEST_EQ(lhs_num.quot, 0U);
BOOST_TEST_EQ(lhs_num.rem, 0U);

const auto lhs_denom {div(zero, lhs)};
const auto lhs_denom {boost::int128::div(zero, lhs)};
BOOST_TEST_EQ(lhs_denom.quot, 0U);
BOOST_TEST_EQ(lhs_denom.rem, 0U);
}
Expand Down Expand Up @@ -98,22 +109,22 @@ void test_signed_div()
BOOST_INT128_UNREACHABLE; // LCOV_EXCL_LINE
}

const auto div_res {div(lhs, rhs)};
const auto div_res {boost::int128::div(lhs, rhs)};
BOOST_TEST_EQ(div_res.quot, lhs / rhs);
BOOST_TEST_EQ(div_res.rem, lhs % rhs);

const auto inv_div_res {div(rhs, lhs)};
const auto inv_div_res {boost::int128::div(rhs, lhs)};
BOOST_TEST_EQ(inv_div_res.quot, rhs / lhs);
BOOST_TEST_EQ(inv_div_res.rem, rhs % lhs);
}

int128_t lhs {idist(rng), dist(rng)};
int128_t zero {idist(rng) * 0, dist(rng) * 0U};
const auto lhs_num {div(lhs, zero)};
const auto lhs_num {boost::int128::div(lhs, zero)};
BOOST_TEST_EQ(lhs_num.quot, 0);
BOOST_TEST_EQ(lhs_num.rem, 0);

const auto lhs_denom {div(zero, lhs)};
const auto lhs_denom {boost::int128::div(zero, lhs)};
BOOST_TEST_EQ(lhs_denom.quot, 0);
BOOST_TEST_EQ(lhs_denom.rem, 0);
}
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10 changes: 10 additions & 0 deletions test/test_gcd_lcm.cpp
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Expand Up @@ -2,7 +2,17 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt


#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <limits>

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9 changes: 9 additions & 0 deletions test/test_i128.cpp
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Expand Up @@ -6,9 +6,18 @@
# define BOOST_INT128_ALLOW_SIGN_CONVERSION
#endif

#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128/detail/int128_imp.hpp>
#include <boost/int128/detail/conversions.hpp>
#include <boost/int128/iostream.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <boost/mp11.hpp>
#include <cstring>
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10 changes: 10 additions & 0 deletions test/test_i128_no_sign_conv.cpp
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Expand Up @@ -2,8 +2,18 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128/detail/int128_imp.hpp>
#include <boost/int128/detail/conversions.hpp>
#include <boost/int128/iostream.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <boost/mp11.hpp>
#include <cstring>
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9 changes: 9 additions & 0 deletions test/test_limits_i128.cpp
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Expand Up @@ -2,7 +2,16 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128/int128.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <limits>

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9 changes: 9 additions & 0 deletions test/test_limits_u128.cpp
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Expand Up @@ -2,7 +2,16 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128/int128.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <limits>

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9 changes: 9 additions & 0 deletions test/test_literals.cpp
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Expand Up @@ -2,9 +2,18 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128/int128.hpp>
#include <boost/int128/literals.hpp>
#include <boost/int128/iostream.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <limits>

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9 changes: 9 additions & 0 deletions test/test_midpoint.cpp
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Expand Up @@ -2,7 +2,16 @@
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#ifndef BOOST_INT128_BUILD_MODULE

#include <boost/int128.hpp>

#else

import boost.int128;

#endif

#include <boost/core/lightweight_test.hpp>
#include <numeric>

Expand Down