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// udt_conversion_example.cpp --------------------------------------------------------//
// Copyright Beman Dawes 2013
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
//--------------------------------------------------------------------------------------//
#include <boost/endian/detail/disable_warnings.hpp>
#include <boost/endian/conversion.hpp>
#include <iostream>
#include <cstring>
using namespace boost::endian;
using std::cout;
using std::endl;
using boost::int32_t;
using boost::int64_t;
namespace user
{
class UDT
{
public:
UDT() : id_(0), value_(0) {desc_[0] = '\0';}
UDT(int32_t id, int64_t value, const char* desc) : id_(id), value_(value)
{
std::strncpy(desc_, desc, sizeof(desc_)-1);
desc_[sizeof(desc_)-1] = '\0';
}
int32_t id() const {return id_;}
int64_t value() const {return value_;}
const char* desc() const {return desc_;}
void id(int32_t x) {id_ = x;}
void value(int64_t v) {value_ = v;}
void desc(const char* s)
{
std::strncpy(desc_, s, sizeof(desc_)-1);
desc_[sizeof(desc_-1)] = '\0';
}
friend void endian_reverse_inplace(UDT&);
private:
int32_t id_;
int64_t value_;
char desc_[56]; // '/0'
};
void endian_reverse_inplace(UDT& x)
{
boost::endian::endian_reverse_inplace(x.id_);
boost::endian::endian_reverse_inplace(x.value_);
}
}
int main(int, char* [])
{
user::UDT x(1, 123456789012345LL, "Bingo!");
//cout << std::hex;
cout << "(1) " << x.id() << ' ' << x.value() << ' ' << x.desc() << endl;
user::endian_reverse_inplace(x);
cout << "(2) " << x.id() << ' ' << x.value() << ' ' << x.desc() << endl;
endian_reverse_inplace(x);
cout << "(3) " << x.id() << ' ' << x.value() << ' ' << x.desc() << endl;
conditional_reverse_inplace<order::little, order::big>(x);
cout << "(4) " << x.id() << ' ' << x.value() << ' ' << x.desc() << endl;
conditional_reverse_inplace(x, order::big, order::little);
cout << "(5) " << x.id() << ' ' << x.value() << ' ' << x.desc() << endl;
}
#include <boost/endian/detail/disable_warnings_pop.hpp>
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