int main()
{
using string_view = std::experimental::string_view;
using u16string_view = std::experimental::u16string_view;
using u32string_view = std::experimental::u32string_view;
using wstring_view = std::experimental::wstring_view;
test(string_view {});
test(string_view { "123"});
test(u16string_view{});
test(u16string_view{u"123"});
test(u32string_view{});
test(u32string_view{U"123"});
test(wstring_view {});
test(wstring_view {L"123"});
{
constexpr string_view sv { "123", 3 };
constexpr u16string_view u16sv {u"123", 3 };
constexpr u32string_view u32sv {U"123", 3 };
constexpr wstring_view wsv {L"123", 3 };
static_assert ( sv.begin() != sv.end(), "" );
static_assert ( u16sv.begin() != u16sv.end(), "" );
static_assert ( u32sv.begin() != u32sv.end(), "" );
static_assert ( wsv.begin() != wsv.end(), "" );
static_assert ( sv.begin() != sv.cend(), "" );
static_assert ( u16sv.begin() != u16sv.cend(), "" );
static_assert ( u32sv.begin() != u32sv.cend(), "" );
static_assert ( wsv.begin() != wsv.cend(), "" );
}
}
std::string wchar_utf8(wstring_view wide, error_code& ec)
{
// allocate space for worst-case
std::string utf8;
utf8.resize(wide.size() * 6);
if (wide.empty()) return {};
wchar_t const* src_start = wide.data();
utf8_errors::error_code_enum const ret = convert_from_wide<sizeof(wchar_t)>::convert(
&src_start, src_start + wide.size(), utf8);
if (ret != utf8_errors::error_code_enum::conversion_ok)
ec = make_error_code(ret);
return utf8;
}
void CHistoryCollector::ClearHistoryLine(wstring_view errStr)
{
if (errStr.empty()) // in case of error let the display stay as it is
{
if (nullptr != m_pCalcDisplay)
{
m_pCalcDisplay->SetExpressionDisplay(std::make_shared<CalculatorVector<std::pair<std::wstring, int>>>(), std::make_shared<CalculatorVector<std::shared_ptr<IExpressionCommand>>>());
}
m_iCurLineHistStart = -1; // It will get recomputed at the first Opnd
ReinitHistory();
}
}
void CHistoryCollector::AddOpndToHistory(wstring_view numStr, Rational const& rat, bool fRepetition)
{
std::shared_ptr<CalculatorVector<int>> commands = std::make_shared<CalculatorVector<int>>();
// Check for negate
bool fNegative = (numStr[0] == L'-');
bool fSciFmt = false;
bool fDecimal = false;
for (size_t i = (fNegative ? 1 : 0); i < numStr.length(); i++)
{
if (numStr[i] == m_decimalSymbol)
{
IFT(commands->Append(IDC_PNT));
if (!fSciFmt)
{
fDecimal = true;
}
}
else if (numStr[i] == L'e')
{
IFT(commands->Append(IDC_EXP));
fSciFmt = true;
}
else if (numStr[i] == L'-')
{
IFT(commands->Append(IDC_SIGN));
}
else if (numStr[i] == L'+')
{
// Ignore.
}
// Number
else
{
int num = static_cast<int>(numStr[i]) - ASCII_0;
num += IDC_0;
IFT(commands->Append(num));
}
}
auto operandCommand = std::make_shared<COpndCommand>(commands, fNegative, fDecimal, fSciFmt);
operandCommand->Initialize(rat);
int iCommandEnd = AddCommand(operandCommand);
m_lastOpStartIndex = IchAddSzToEquationSz(numStr, iCommandEnd);
if (fRepetition)
{
SetExpressionDisplay();
}
m_bLastOpndBrace = false;
m_lastBinOpStartIndex = -1;
}
int main()
{
typedef std::experimental::string_view string_view;
typedef std::experimental::u16string_view u16string_view;
typedef std::experimental::u32string_view u32string_view;
typedef std::experimental::wstring_view wstring_view;
test(string_view ());
test(u16string_view());
test(u32string_view());
test(wstring_view ());
test(string_view ( "123"));
test(wstring_view (L"123"));
#if __cplusplus >= 201103L
test(u16string_view{u"123"});
test(u32string_view{U"123"});
#endif
#if _LIBCPP_STD_VER > 11
{
constexpr string_view sv { "123", 3 };
constexpr u16string_view u16sv {u"123", 3 };
constexpr u32string_view u32sv {U"123", 3 };
constexpr wstring_view wsv {L"123", 3 };
static_assert ( *sv.begin() == sv[0], "" );
static_assert ( *u16sv.begin() == u16sv[0], "" );
static_assert ( *u32sv.begin() == u32sv[0], "" );
static_assert ( *wsv.begin() == wsv[0], "" );
static_assert ( *sv.cbegin() == sv[0], "" );
static_assert ( *u16sv.cbegin() == u16sv[0], "" );
static_assert ( *u32sv.cbegin() == u32sv[0], "" );
static_assert ( *wsv.cbegin() == wsv[0], "" );
}
#endif
}
int main()
{
typedef std::string_view string_view;
typedef std::u16string_view u16string_view;
typedef std::u32string_view u32string_view;
typedef std::wstring_view wstring_view;
test(string_view ());
test(u16string_view());
test(u32string_view());
test(wstring_view ());
test(string_view ( "123"));
test(wstring_view (L"123"));
#if TEST_STD_VER >= 11
test(u16string_view{u"123"});
test(u32string_view{U"123"});
#endif
#if TEST_STD_VER > 11
{
constexpr string_view sv { "123", 3 };
constexpr u16string_view u16sv {u"123", 3 };
constexpr u32string_view u32sv {U"123", 3 };
constexpr wstring_view wsv {L"123", 3 };
static_assert ( sv.begin() != sv.end(), "" );
static_assert ( u16sv.begin() != u16sv.end(), "" );
static_assert ( u32sv.begin() != u32sv.end(), "" );
static_assert ( wsv.begin() != wsv.end(), "" );
static_assert ( sv.begin() != sv.cend(), "" );
static_assert ( u16sv.begin() != u16sv.cend(), "" );
static_assert ( u32sv.begin() != u32sv.cend(), "" );
static_assert ( wsv.begin() != wsv.cend(), "" );
}
#endif
}
//Update the commands corresponding to the passed string Number
std::shared_ptr<CalculatorVector<int>> CHistoryCollector::GetOperandCommandsFromString(wstring_view numStr)
{
std::shared_ptr<CalculatorVector<int>> commands = std::make_shared<CalculatorVector<int>>();
// Check for negate
bool fNegative = (numStr[0] == L'-');
for (size_t i = (fNegative ? 1 : 0); i < numStr.length(); i++)
{
if (numStr[i] == m_decimalSymbol)
{
IFT(commands->Append(IDC_PNT));
}
else if (numStr[i] == L'e')
{
IFT(commands->Append(IDC_EXP));
}
else if (numStr[i] == L'-')
{
IFT(commands->Append(IDC_SIGN));
}
else if (numStr[i] == L'+')
{
// Ignore.
}
// Number
else
{
int num = static_cast<int>(numStr[i]) - ASCII_0;
num += IDC_0;
IFT(commands->Append(num));
}
}
// If the number is negative, append a sign command at the end.
if (fNegative)
{
IFT(commands->Append(IDC_SIGN));
}
return commands;
}
string::string(const wstring_view& view) : _base(_Convert<wchar_t>::toUTF8(view.data(), 0, view.size()))
{
}
string
WCSToMBCS(wstring_view sv, unsigned cp)
{
return sv.length() != 0 ? WCSToMBCS(CheckNonnegativeScalar<int>(
sv.length()), sv.data(), cp) : string();
}
