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cxx/test/localization/locale.stdcvt/codecvt_utf8_utf16_in.pass.cpp
Howard Hinnant ef0036c5aa Corrected some int -> char narrowing conversions 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111849 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23 21:41:03 +00:00

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <codecvt>
// template <class Elem, unsigned long Maxcode = 0x10ffff,
// codecvt_mode Mode = (codecvt_mode)0>
// class codecvt_utf8_utf16
// : public codecvt<Elem, char, mbstate_t>
// {
// // unspecified
// };
// result
// in(stateT& state,
// const externT* from, const externT* from_end, const externT*& from_next,
// internT* to, internT* to_end, internT*& to_next) const;
#include <codecvt>
#include <cassert>
int main()
{
{
typedef std::codecvt_utf8_utf16<wchar_t> C;
C c;
wchar_t w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
wchar_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+4, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+2);
assert(np == n+4);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<wchar_t, 0x1000> C;
C c;
wchar_t w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
wchar_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+4, np, w, w+2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<wchar_t, 0x10ffff, std::consume_header> C;
C c;
wchar_t w[2] = {0};
char n[7] = {char(0xEF), char(0xBB), char(0xBF), char(0xF1), char(0x80), char(0x80), char(0x83)};
wchar_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+7, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+2);
assert(np == n+7);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<char32_t> C;
C c;
char32_t w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
char32_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+4, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+2);
assert(np == n+4);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<char32_t, 0x1000> C;
C c;
char32_t w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
char32_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+4, np, w, w+2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<char32_t, 0x10ffff, std::consume_header> C;
C c;
char32_t w[2] = {0};
char n[7] = {char(0xEF), char(0xBB), char(0xBF), char(0xF1), char(0x80), char(0x80), char(0x83)};
char32_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+7, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+2);
assert(np == n+7);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<char16_t> C;
C c;
char16_t w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
char16_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+4, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+2);
assert(np == n+4);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<char16_t, 0x1000> C;
C c;
char16_t w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
char16_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+4, np, w, w+2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<char16_t, 0x10ffff, std::consume_header> C;
C c;
char16_t w[2] = {0};
char n[7] = {char(0xEF), char(0xBB), char(0xBF), char(0xF1), char(0x80), char(0x80), char(0x83)};
char16_t* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n+7, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+2);
assert(np == n+7);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n+3, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n+2, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n+1, np, w, w+2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w+1);
assert(np == n+1);
assert(w[0] == 0x0056);
}
}
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