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introduce fpc::tolerance_based to be used instead of is_floating_point. This should allow us to extend tolerance based comparisons t omore types

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This commit is contained in:
Gennadiy Rozental
2015-03-24 00:15:18 -04:00
parent 573eef160d
commit 56fa3271f3
2 changed files with 11 additions and 14 deletions
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8
test/Jamfile.v2
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@@ -47,7 +47,7 @@ rule test-btl-lib-c11 ( test-rule : test-name : lib-name ? : pattern_file * : so
# So deactivate those warnings again
<toolset>gcc:<cxxflags>-pedantic
<toolset>gcc:<cxxflags>-Wno-long-long
#<toolset>gcc:<cxxflags>-std=gnu++0x
<toolset>gcc:<cxxflags>-std=c++11
<toolset>gcc-4.5:<cxxflags>-std=gnu++0x
<toolset>gcc-4.7:<cxxflags>-std=gnu++11
<toolset>borland:<cxxflags>-w-8080
@@ -79,7 +79,7 @@ rule test-btl-lib-mt ( test-rule : test-name : lib-name ? : pattern_file * : sou
<toolset>borland:<cxxflags>-w-8080
<toolset>msvc-6.5:<link>static
<toolset>msvc-8.0:<define>_SCL_SECURE_NO_DEPRECATE
#<toolset>gcc:<cxxflags>-std=gnu++0x
<toolset>gcc:<cxxflags>-std=c++11
<toolset>gcc-4.5:<cxxflags>-std=gnu++0x
<toolset>gcc-4.7:<cxxflags>-std=gnu++11
<toolset>clang:<cxxflags>-Wno-c99-extensions
@@ -131,7 +131,7 @@ test-suite "unit_test_framework_test"
[ test-btl-lib run : test_assertion_construction : boost_unit_test_framework/<link>static ]
[ test-btl-lib run : test_datasets : boost_unit_test_framework : : [ glob test_datasets_src/*.cpp ] : ]
[ test-btl-lib-c11 run : test_datasets_cxx11 : boost_unit_test_framework : : [ glob test_datasets_src/*.cpp ] : ]
# [ test-btl-lib run : config_file_iterator_test : boost_unit_test_framework/<link>static ]
# [ test-btl-lib run : config_file_test : boost_unit_test_framework/<link>static ]
@@ -139,7 +139,7 @@ test-suite "unit_test_framework_test"
[ test-btl-lib run : test_dont_print_log_value : boost_unit_test_framework ]
# test for multiprecision / trac 11054
[ test-btl-lib run : test_fp_multiprecision_close_fraction : boost_unit_test_framework ]
[ test-btl-lib-c11 run : test_fp_multiprecision_close_fraction : boost_unit_test_framework ]
;
test-suite "multithreaded_test"

17
test/test_fp_multiprecision_close_fraction.cpp
View File

@@ -15,7 +15,6 @@
#define BOOST_LIB_DIAGNOSTIC "on"// Show library file details.
#include <boost/test/unit_test.hpp>
#include <boost/test/floating_point_comparison.hpp> // Extra test tool for FP comparison.
#include <iostream>
#include <limits>
@@ -46,7 +45,7 @@ if desired, as shown below.
*/
using namespace boost::multiprecision;
namespace tt = boost::test_tools;
/*`Now `cpp_dec_float_50_noet` or `cpp_dec_float_50_et`
can be used as a direct replacement for built-in types like `double` etc.
@@ -67,10 +66,9 @@ BOOST_AUTO_TEST_CASE(cpp_float_test_check_close_noet)
std::cout <<"a = " << a << ",\nb = " << b << ",\neps = " << eps << std::endl;
BOOST_CHECK_CLOSE(a, b, eps * 100); // Expected to pass (because tolerance is as percent).
BOOST_CHECK_CLOSE_FRACTION(a, b, eps); // Expected to pass (because tolerance is as fraction).
BOOST_TEST( a == b, tt::tolerance( tt::fpc::percent_tolerance( eps * 100 ) ) );
BOOST_TEST( a == b, tt::tolerance( eps ) );
//] [/expression_template_1]git
} // BOOST_AUTO_TEST_CASE(cpp_float_test_check_close)
@@ -90,8 +88,8 @@ BOOST_AUTO_TEST_CASE(cpp_float_test_check_close_et)
std::cout << "a = " << a << ",\nb = " << b << ",\neps = " << eps << std::endl;
BOOST_CHECK_CLOSE(a, b, eps * 100); // Expected to pass (because tolerance is as percent).
BOOST_CHECK_CLOSE_FRACTION(a, b, eps); // Expected to pass (because tolerance is as fraction).
BOOST_TEST( a == b, tt::tolerance( tt::fpc::percent_tolerance( (cpp_dec_float_50_et)(eps * 100) ) ) );
BOOST_TEST( a == b, tt::tolerance( eps ) );
/*`Using `cpp_dec_float_50` with the default expression template use switched on,
the compiler error message for `BOOST_CHECK_CLOSE_FRACTION(a, b, eps); would be:
@@ -108,13 +106,12 @@ Output:
Description: Autorun "J:\Cpp\big_number\Debug\test_cpp_float_close_fraction.exe"
Running 1 test case...
a = 1.0000000000000000000000000000000000000000000000000,
b = 1.0000000000000000000000000000000000000000000000001,
eps = 1.0000000000000000000000000000000000000000000000000e-49
*** No errors detected
*** No errors detected
*/