libcmo21/LibCmo/XContainer/XTypes.cpp
2023-09-16 18:31:25 +08:00

50 lines
959 B
C++

#pragma once
#include "XTypes.hpp"
namespace LibCmo::XContainer {
namespace NSXBitArray {
template<bool _Cond>
bool GeneralGetBitPosition(const XBitArray& ba, CKDWORD n, CKDWORD& got) {
CKDWORD counter = 0;
for (size_t i = 0; i < ba.size(); ++i) {
if (ba[i] == _Cond) {
if (counter == n) {
got = static_cast<CKDWORD>(i);
return true;
} else {
++counter;
}
}
}
return false;
}
bool GetSetBitPosition(const XBitArray& ba, CKDWORD n, CKDWORD& got) {
return GeneralGetBitPosition<true>(ba, n, got);
}
bool GetUnsetBitPosition(const XBitArray& ba, CKDWORD n, CKDWORD& got) {
return GeneralGetBitPosition<false>(ba, n, got);
}
}
namespace NSXString {
CKSTRING ToCKSTRING(const XString& strl) {
if (strl.empty()) return nullptr;
else return strl.c_str();
}
void FromCKSTRING(XString& strl, CKSTRING s) {
if (s == nullptr) strl.clear();
else strl = s;
}
}
}