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llvm-project/libcxx/test/localization/locale.stdcvt/codecvt_utf16_length.pass.cpp

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <codecvt>
// template <class Elem, unsigned long Maxcode = 0x10ffff,
// codecvt_mode Mode = (codecvt_mode)0>
// class codecvt_utf16
// : public codecvt<Elem, char, mbstate_t>
// {
// // unspecified
// };
// int length(stateT& state, const externT* from, const externT* from_end,
// size_t max) const;
#include <codecvt>
#include <cassert>
int main()
{
{
typedef std::codecvt_utf16<wchar_t> C;
C c;
char n[4] = {char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 4);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<wchar_t, 0x1000> C;
C c;
char n[4] = {char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 0);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<wchar_t, 0x10ffff, std::consume_header> C;
C c;
char n[6] = {char(0xFE), char(0xFF), char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+6, 2);
assert(r == 6);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<wchar_t, 0x10ffff, std::little_endian> C;
C c;
char n[4] = {char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 4);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<wchar_t, 0x1000, std::little_endian> C;
C c;
char n[4] = {char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 0);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<wchar_t, 0x10ffff, std::codecvt_mode(
std::consume_header |
std::little_endian)> C;
C c;
char n[6] = {char(0xFF), char(0xFE), char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+6, 2);
assert(r == 6);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char32_t> C;
C c;
char n[4] = {char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 4);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char32_t, 0x1000> C;
C c;
char n[4] = {char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 0);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char32_t, 0x10ffff, std::consume_header> C;
C c;
char n[6] = {char(0xFE), char(0xFF), char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+6, 2);
assert(r == 6);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char32_t, 0x10ffff, std::little_endian> C;
C c;
char n[4] = {char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 4);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char32_t, 0x1000, std::little_endian> C;
C c;
char n[4] = {char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 0);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char32_t, 0x10ffff, std::codecvt_mode(
std::consume_header |
std::little_endian)> C;
C c;
char n[6] = {char(0xFF), char(0xFE), char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+6, 2);
assert(r == 6);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char16_t> C;
C c;
char n[4] = {char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char16_t, 0x1000> C;
C c;
char n[4] = {char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 0);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char16_t, 0x10ffff, std::consume_header> C;
C c;
char n[6] = {char(0xFE), char(0xFF), char(0xD8), char(0xC0), char(0xDC), char(0x03)};
std::mbstate_t m;
int r = c.length(m, n, n+6, 2);
assert(r == 2);
n[0] = char(0x10);
n[1] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x04);
n[1] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[0] = char(0x00);
n[1] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char16_t, 0x10ffff, std::little_endian> C;
C c;
char n[4] = {char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char16_t, 0x1000, std::little_endian> C;
C c;
char n[4] = {char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+4, 2);
assert(r == 0);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 0);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
{
typedef std::codecvt_utf16<char16_t, 0x10ffff, std::codecvt_mode(
std::consume_header |
std::little_endian)> C;
C c;
char n[6] = {char(0xFF), char(0xFE), char(0xC0), char(0xD8), char(0x03), char(0xDC)};
std::mbstate_t m;
int r = c.length(m, n, n+6, 2);
assert(r == 2);
n[1] = char(0x10);
n[0] = char(0x05);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x04);
n[0] = char(0x53);
r = c.length(m, n, n+2, 2);
assert(r == 2);
n[1] = char(0x00);
n[0] = char(0x56);
r = c.length(m, n, n+2, 2);
assert(r == 2);
}
}
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