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#include <utility>
#include <windows.h>
#include "wcharptr.h"
#include "win.h"
WcharPtr WcharPtr::FromNarrow(const char* const src, const int cp)
{
int cchNarrow = strlen(src)+1;
int cchWide = MultiByteToWideChar(cp, 0, src, cchNarrow, nullptr, 0);
wchar_t* dst = new wchar_t[cchWide];
if (!MultiByteToWideChar(cp, 0, src, cchNarrow, dst, cchWide)) {
delete dst;
throw Win32Error();
}
return dst;
}
WcharPtr WcharPtr::Copy(const wchar_t* const src)
{
const int cch = wcslen(src)+1;
wchar_t* dst = new wchar_t[cch];
memcpy(dst, src, cch*sizeof(wchar_t));
return dst;
}
WcharPtr::WcharPtr() noexcept {}
WcharPtr::~WcharPtr() noexcept
{
delete m_p;
}
WcharPtr::operator wchar_t*() noexcept
{
return m_p;
}
WcharPtr::WcharPtr(wchar_t* const s) noexcept : m_p(s) {}
WcharPtr& WcharPtr::operator=(wchar_t* const s) noexcept
{
if (m_p != s) {
delete m_p;
m_p = s;
}
return *this;
}
WcharPtr::WcharPtr(WcharPtr&& other) noexcept
: m_p(std::exchange(other.m_p, nullptr)) {}
WcharPtr& WcharPtr::operator=(WcharPtr&& other) noexcept
{
std::swap(m_p, other.m_p);
return *this;
}
wchar_t* WcharPtr::Release() noexcept
{
wchar_t* p2 = m_p;
m_p = nullptr;
return p2;
}
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