diff options
Diffstat (limited to 'libstdc++-v3/src')
| -rw-r--r-- | libstdc++-v3/src/c++11/codecvt.cc | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/libstdc++-v3/src/c++11/codecvt.cc b/libstdc++-v3/src/c++11/codecvt.cc index 594dae6..aebd3f3 100644 --- a/libstdc++-v3/src/c++11/codecvt.cc +++ b/libstdc++-v3/src/c++11/codecvt.cc @@ -295,13 +295,10 @@ namespace { // Algorithm from http://www.unicode.org/faq/utf_bom.html#utf16-4 const char32_t LEAD_OFFSET = 0xD800 - (0x10000 >> 10); - const char32_t SURROGATE_OFFSET = 0x10000 - (0xD800 << 10) - 0xDC00; char16_t lead = LEAD_OFFSET + (codepoint >> 10); char16_t trail = 0xDC00 + (codepoint & 0x3FF); - char32_t utf16bytes = (lead << 10) + trail + SURROGATE_OFFSET; - - to.next[0] = adjust_byte_order(utf16bytes >> 16, mode); - to.next[1] = adjust_byte_order(utf16bytes & 0xFFFF, mode); + to.next[0] = adjust_byte_order(lead, mode); + to.next[1] = adjust_byte_order(trail, mode); to.next += 2; return true; } @@ -400,7 +397,7 @@ namespace return codecvt_base::partial; if (codepoint > maxcode) return codecvt_base::error; - if (!write_utf16_code_point(to, codepoint, {})) + if (!write_utf16_code_point(to, codepoint, mode)) { from.next = first; return codecvt_base::partial; @@ -618,7 +615,12 @@ do_in(state_type&, const extern_type* __from, const extern_type* __from_end, { range<const char> from{ __from, __from_end }; range<char16_t> to{ __to, __to_end }; - auto res = utf16_in(from, to); +#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ + codecvt_mode mode = {}; +#else + codecvt_mode mode = little_endian; +#endif + auto res = utf16_in(from, to, max_code_point, mode); __from_next = from.next; __to_next = to.next; return res; |