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Add float_typedef_test

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This commit is contained in:
Peter Dimov
2019-10-15 02:41:11 +03:00
parent b015a164f8
commit af83fc2537
2 changed files with 80 additions and 0 deletions
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3
test/Jamfile.v2
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@@ -79,3 +79,6 @@ run load_convenience_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : load_co
run store_convenience_test.cpp ; run store_convenience_test.cpp ;
run store_convenience_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : store_convenience_test_ni ; run store_convenience_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : store_convenience_test_ni ;
run float_typedef_test.cpp ;
run float_typedef_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : float_typedef_test_ni ;

77
test/float_typedef_test.cpp Normal file
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@@ -0,0 +1,77 @@
// Copyright 2019 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/endian/arithmetic.hpp>
#include <boost/endian/buffers.hpp>
#include <boost/core/lightweight_test.hpp>
template<class T> struct align
{
char _;
T v;
explicit align( typename T::value_type y ): _(), v( y )
{
}
};
template<class T, class U> void test_buffer( U const & y, bool aligned )
{
align<T> x( y );
BOOST_TEST_EQ( sizeof(x), aligned? 2 * sizeof(U): 1 + sizeof(U) );
BOOST_TEST_EQ( x.v.value(), y );
}
template<class T, class U> void test_arithmetic( U const & y, bool aligned )
{
test_buffer<T>( y, aligned );
align<T> x( y );
BOOST_TEST_EQ( x.v + 7, y + 7 );
}
int main()
{
using namespace boost::endian;
// buffers
test_buffer<big_float32_buf_t>( 3.1416f, false );
test_buffer<big_float64_buf_t>( 3.14159, false );
test_buffer<little_float32_buf_t>( 3.1416f, false );
test_buffer<little_float64_buf_t>( 3.14159, false );
test_buffer<native_float32_buf_t>( 3.1416f, false );
test_buffer<native_float64_buf_t>( 3.14159, false );
test_buffer<big_float32_buf_at>( 3.1416f, true );
test_buffer<big_float64_buf_at>( 3.14159, true );
test_buffer<little_float32_buf_at>( 3.1416f, true );
test_buffer<little_float64_buf_at>( 3.14159, true );
// arithmetic
test_arithmetic<big_float32_t>( 3.1416f, false );
test_arithmetic<big_float64_t>( 3.14159, false );
test_arithmetic<little_float32_t>( 3.1416f, false );
test_arithmetic<little_float64_t>( 3.14159, false );
test_arithmetic<native_float32_t>( 3.1416f, false );
test_arithmetic<native_float64_t>( 3.14159, false );
test_arithmetic<big_float32_at>( 3.1416f, true );
test_arithmetic<big_float64_at>( 3.14159, true );
test_arithmetic<little_float32_at>( 3.1416f, true );
test_arithmetic<little_float64_at>( 3.14159, true );
return boost::report_errors();
}