Searched defs:ProcessUCNEscape (Results 1 - 1 of 1) sorted by relevance
| /external/clang/lib/Lex/ |
| H A D | LiteralSupport.cpp | 215 /// ProcessUCNEscape - Read the Universal Character Name, check constraints and
217 static bool ProcessUCNEscape(const char *ThisTokBegin, const char *&ThisTokBuf, function
300 if (!ProcessUCNEscape(ThisTokBegin, ThisTokBuf, ThisTokEnd, UcnVal,
333 if (!ProcessUCNEscape(ThisTokBegin, ThisTokBuf, ThisTokEnd, UcnVal, UcnLen,
983 if (!ProcessUCNEscape(TokBegin, begin, end, *buffer_begin, UcnLen,
807 assert(C < radix && Ó); CharVal = C; OldVal = Val; Val *= RadixVal; OverflowOccurred |= Val.udiv(RadixVal) != OldVal; Val += CharVal; OverflowOccurred |= Val.ult(CharVal); } return OverflowOccurred; } llvm::APFloat::opStatus NumericLiteralParser::GetFloatValue(llvm::APFloat &Result) { using llvm::APFloat; unsigned n = std::min(SuffixBegin - ThisTokBegin, ThisTokEnd - ThisTokBegin); return Result.convertFromString(StringRef(ThisTokBegin, n), APFloat::rmNearestTiesToEven); } CharLiteralParser::CharLiteralParser(const char *begin, const char *end, SourceLocation Loc, Preprocessor &PP, tok::TokenKind kind) { HadError = false; Kind = kind; const char *TokBegin = begin; if (Kind != tok::char_constant) { ++begin; } assert(begin[0] == Ã && Ó); ++begin; if (end[-1] != Ã) { const char *UDSuffixEnd = end; do { --end; } while (end[-1] != Ã); UDSuffixBuf.assign(end, UDSuffixEnd); UDSuffixOffset = end - TokBegin; } assert(end != begin && Ó); --end; assert(PP.getTargetInfo().getCharWidth() == 8 && Ó); assert(PP.getTargetInfo().getIntWidth() <= 64 && (PP.getTargetInfo().getIntWidth() & 7) == 0 && Ó); assert(PP.getTargetInfo().getWCharWidth() <= 64 && Ó); SmallVector<uint32_t,4> codepoint_buffer; codepoint_buffer.resize(end-begin); uint32_t *buffer_begin = &codepoint_buffer.front(); uint32_t *buffer_end = buffer_begin + codepoint_buffer.size(); uint32_t largest_character_for_kind; if (tok::wide_char_constant == Kind) { largest_character_for_kind = 0xFFFFFFFFu >> (32-PP.getTargetInfo().getWCharWidth()); } else if (tok::utf16_char_constant == Kind) { largest_character_for_kind = 0xFFFF; } else if (tok::utf32_char_constant == Kind) { largest_character_for_kind = 0x10FFFF; } else { largest_character_for_kind = 0x7Fu; } while (begin!=end) { if (begin[0] != Ã) { char const *start = begin; do { ++begin; } while (begin != end && *begin != Ã); char const *tmp_in_start = start; uint32_t *tmp_out_start = buffer_begin; ConversionResult res = ConvertUTF8toUTF32(reinterpret_cast<UTF8 const **>(&start), reinterpret_cast<UTF8 const *>(begin), &buffer_begin,buffer_end,strictConversion); if (res!=conversionOK) { bool NoErrorOnBadEncoding = isAscii(); unsigned Msg = diag::err_bad_character_encoding; if (NoErrorOnBadEncoding) Msg = diag::warn_bad_character_encoding; PP.Diag(Loc, Msg); if (NoErrorOnBadEncoding) { start = tmp_in_start; buffer_begin = tmp_out_start; for ( ; start != begin; ++start, ++buffer_begin) *buffer_begin = static_cast<uint8_t>(*start); } else { HadError = true; } } else { for (; tmp_out_start <buffer_begin; ++tmp_out_start) { if (*tmp_out_start > largest_character_for_kind) { HadError = true; PP.Diag(Loc, diag::err_character_too_large); } } } continue; } if (begin[1] == Ã || begin[1] == Ã) { unsigned short UcnLen = 0; if (!ProcessUCNEscape(TokBegin, begin, end, *buffer_begin, UcnLen, FullSourceLoc(Loc, PP.getSourceManager()), &PP.getDiagnostics(), PP.getLangOpts(), true)) { HadError = true; } else if (*buffer_begin > largest_character_for_kind) argument
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