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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <locale>
     11 
     12 // template <> class codecvt<char32_t, char, mbstate_t>
     13 // template <> class codecvt<char16_t, char, mbstate_t>
     14 // template <> class codecvt<char32_t, char16_t, mbstate_t>  // extension
     15 
     16 // sanity check
     17 
     18 #include <locale>
     19 #include <codecvt>
     20 #include <cassert>
     21 
     22 #include <stdio.h>
     23 
     24 int main()
     25 {
     26     typedef std::codecvt<char32_t, char, std::mbstate_t> F32_8;
     27     typedef std::codecvt<char16_t, char, std::mbstate_t> F16_8;
     28     typedef std::codecvt_utf16<char32_t> F32_16;
     29     std::locale l = std::locale(std::locale::classic(), new F32_16);
     30     const F32_8& f32_8 = std::use_facet<F32_8>(std::locale::classic());
     31     const F32_16& f32_16 = std::use_facet<F32_16>(l);
     32     const F16_8& f16_8 = std::use_facet<F16_8>(std::locale::classic());
     33     std::mbstate_t mbs = {0};
     34     F32_8::intern_type* c32p;
     35     F16_8::intern_type* c16p;
     36     F32_8::extern_type* c8p;
     37     const F32_8::intern_type* c_c32p;
     38     const F16_8::intern_type* c_c16p;
     39     const F32_8::extern_type* c_c8p;
     40     F32_8::intern_type c32;
     41     F16_8::intern_type c16[2];
     42     char c16c[4];
     43     char* c16cp;
     44     F32_8::extern_type c8[4];
     45     for (F32_8::intern_type c32x = 0; c32x < 0x110003; ++c32x)
     46     {
     47         if ((0xD800 <= c32x && c32x < 0xE000) || c32x >= 0x110000)
     48         {
     49             assert(f32_16.out(mbs, &c32x, &c32x+1, c_c32p, c16c+0, c16c+4, c16cp) == F32_8::error);
     50             assert(f32_8.out(mbs, &c32x, &c32x+1, c_c32p, c8, c8+4, c8p) == F32_8::error);
     51         }
     52         else
     53         {
     54             assert(f32_16.out(mbs, &c32x, &c32x+1, c_c32p, c16c, c16c+4, c16cp) == F32_8::ok);
     55             assert(c_c32p-&c32x == 1);
     56             if (c32x < 0x10000)
     57                 assert(c16cp-c16c == 2);
     58             else
     59                 assert(c16cp-c16c == 4);
     60             for (int i = 0; i < (c16cp - c16c) / 2; ++i)
     61                 c16[i] = (unsigned char)c16c[2*i] << 8 | (unsigned char)c16c[2*i+1];
     62             c_c16p = c16 + (c16cp - c16c) / 2;
     63             assert(f16_8.out(mbs, c16, c_c16p, c_c16p, c8, c8+4, c8p) == F32_8::ok);
     64             if (c32x < 0x10000)
     65                 assert(c_c16p-c16 == 1);
     66             else
     67                 assert(c_c16p-c16 == 2);
     68             if (c32x < 0x80)
     69                 assert(c8p-c8 == 1);
     70             else if (c32x < 0x800)
     71                 assert(c8p-c8 == 2);
     72             else if (c32x < 0x10000)
     73                 assert(c8p-c8 == 3);
     74             else
     75                 assert(c8p-c8 == 4);
     76             c_c8p = c8p;
     77             assert(f32_8.in(mbs, c8, c_c8p, c_c8p, &c32, &c32+1, c32p) == F32_8::ok);
     78             if (c32x < 0x80)
     79                 assert(c_c8p-c8 == 1);
     80             else if (c32x < 0x800)
     81                 assert(c_c8p-c8 == 2);
     82             else if (c32x < 0x10000)
     83                 assert(c_c8p-c8 == 3);
     84             else
     85                 assert(c_c8p-c8 == 4);
     86             assert(c32p-&c32 == 1);
     87             assert(c32 == c32x);
     88             assert(f32_8.out(mbs, &c32x, &c32x+1, c_c32p, c8, c8+4, c8p) == F32_8::ok);
     89             assert(c_c32p-&c32x == 1);
     90             if (c32x < 0x80)
     91                 assert(c8p-c8 == 1);
     92             else if (c32x < 0x800)
     93                 assert(c8p-c8 == 2);
     94             else if (c32x < 0x10000)
     95                 assert(c8p-c8 == 3);
     96             else
     97                 assert(c8p-c8 == 4);
     98             c_c8p = c8p;
     99             assert(f16_8.in(mbs, c8, c_c8p, c_c8p, c16, c16+2, c16p) == F32_8::ok);
    100             if (c32x < 0x80)
    101                 assert(c_c8p-c8 == 1);
    102             else if (c32x < 0x800)
    103                 assert(c_c8p-c8 == 2);
    104             else if (c32x < 0x10000)
    105                 assert(c_c8p-c8 == 3);
    106             else
    107                 assert(c_c8p-c8 == 4);
    108             if (c32x < 0x10000)
    109                 assert(c16p-c16 == 1);
    110             else
    111                 assert(c16p-c16 == 2);
    112             for (int i = 0; i < c16p-c16; ++i)
    113             {
    114                 c16c[2*i] = static_cast<char>(c16[i] >> 8);
    115                 c16c[2*i+1] = static_cast<char>(c16[i]);
    116             }
    117             const char* c_c16cp = c16c + (c16p-c16)*2;
    118             assert(f32_16.in(mbs, c16c, c_c16cp, c_c16cp, &c32, &c32+1, c32p) == F32_8::ok);
    119             if (c32x < 0x10000)
    120                 assert(c_c16cp-c16c == 2);
    121             else
    122                 assert(c_c16cp-c16c == 4);
    123             assert(c32p-&c32 == 1);
    124             assert(c32 == c32x);
    125         }
    126     }
    127 }
    128