mirror of
https://github.com/boostorg/convert.git
synced 2026-01-31 08:02:18 +00:00
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
// Boost.Convert test and usage example
|
|
// Copyright (c) 2009-2014 Vladimir Batov.
|
|
// Use, modification and distribution are subject to the Boost Software License,
|
|
// Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.
|
|
|
|
#include <boost/convert.hpp>
|
|
#include <boost/convert/printf.hpp>
|
|
#include <boost/detail/lightweight_test.hpp>
|
|
#include "./test.hpp"
|
|
|
|
using std::string;
|
|
using boost::convert;
|
|
|
|
namespace arg = boost::cnv::parameter;
|
|
|
|
namespace { namespace local
|
|
{
|
|
void str_to_int();
|
|
void int_to_str();
|
|
}}
|
|
|
|
void
|
|
local::str_to_int()
|
|
{
|
|
boost::cnv::printf cnv;
|
|
|
|
string const not_int_str = "not an int";
|
|
string const std_str = "-11";
|
|
char const* const c_str = "-12";
|
|
|
|
BOOST_TEST( -1 == convert<int>(not_int_str, cnv).value_or(-1));
|
|
BOOST_TEST(-11 == convert<int>(std_str, cnv).value_or(-1));
|
|
BOOST_TEST(-12 == convert<int>(c_str, cnv).value_or(-1));
|
|
}
|
|
|
|
void
|
|
local::int_to_str()
|
|
{
|
|
boost::cnv::printf cnv;
|
|
|
|
BOOST_TEST("255" == convert<std::string>(255, cnv(arg::base = boost::cnv::base::dec)).value());
|
|
BOOST_TEST( "ff" == convert<std::string>(255, cnv(arg::base = boost::cnv::base::hex)).value());
|
|
BOOST_TEST("377" == convert<std::string>(255, cnv(arg::base = boost::cnv::base::oct)).value());
|
|
|
|
string s01 = convert<string>(12.3456, cnv(arg::precision = 6)).value();
|
|
string s02 = convert<string>(12.3456, cnv(arg::precision = 3)).value();
|
|
|
|
BOOST_TEST(s01 == "12.345600");
|
|
BOOST_TEST(s02 == "12.346");
|
|
}
|
|
|
|
void
|
|
test::cnv::printf_converter()
|
|
{
|
|
local::str_to_int();
|
|
local::int_to_str();
|
|
}
|