69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
#ifndef _AL_FUNCTION_HPP
|
|
#define _AL_FUNCTION_HPP
|
|
|
|
#include <cassert>
|
|
|
|
#include <limits>
|
|
#include <string>
|
|
|
|
template<class STORAGE, size_t VALUES_COUNT>
|
|
class Function {
|
|
public:
|
|
Function(): _function_values(0) {
|
|
static_assert(not std::numeric_limits<STORAGE>::is_signed);
|
|
}
|
|
explicit Function(STORAGE val): _function_values(val) {
|
|
static_assert(not std::numeric_limits<STORAGE>::is_signed);
|
|
}
|
|
explicit Function(std::string val): _function_values(0) {
|
|
static_assert(not std::numeric_limits<STORAGE>::is_signed);
|
|
assert(("bad input string size", val.size() == VALUES_COUNT));
|
|
STORAGE cur_dig = 1;
|
|
for (auto it = val.rbegin(); it != val.rend(); ++it) {
|
|
if ( *it == '0' ) {
|
|
// nothing to do here
|
|
} else if ( *it == '1' ) {
|
|
_function_values += cur_dig;
|
|
} else {
|
|
assert(("bad input string", false));
|
|
}
|
|
cur_dig *= 2;
|
|
}
|
|
}
|
|
|
|
std::string string() const {
|
|
std::string res(VALUES_COUNT, '0');
|
|
STORAGE tmp_val = _function_values;
|
|
for (size_t ind = 0; ind < VALUES_COUNT; ++ind) {
|
|
char cur_ch = tmp_val % 2 == 0 ? '0' : '1';
|
|
res[VALUES_COUNT - ind - 1] = cur_ch;
|
|
tmp_val /= 2;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
Function operator and (Function other) const {
|
|
return Function(_function_values & other._function_values);
|
|
}
|
|
Function operator or (Function other) const {
|
|
return Function(_function_values | other._function_values);
|
|
}
|
|
Function operator xor(Function other) const {
|
|
return Function(_function_values ^ other._function_values);
|
|
}
|
|
|
|
bool operator < (Function other) const {
|
|
return _function_values < other._function_values;
|
|
}
|
|
bool operator == (Function other) const {
|
|
return _function_values == other._function_values;
|
|
}
|
|
|
|
STORAGE value() const {
|
|
return _function_values;
|
|
}
|
|
private:
|
|
STORAGE _function_values;
|
|
};
|
|
#endif // _AL_FUNCTION_HPP
|