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| author | Nicolas Pena <npm@chromium.org> | 2017-04-18 13:12:41 -0400 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2017-04-18 18:38:11 +0000 |
| commit | ecd36468b5639873295859f29b185c517476cb45 (patch) | |
| tree | d952edf134127126e4ae1f683d0a474e467c7118 /core/fxcrt | |
| parent | 994acdc1a31015674e786d24cc37d08dfae6d863 (diff) | |
| download | pdfium-ecd36468b5639873295859f29b185c517476cb45.tar.xz | |
Check char sign in fx_ext.h
The std methods assume that the input can be represented as unsigned char.
Bug: pdfium:703
Change-Id: I11d20869502aff0ebb8badca853398a7d0232338
Reviewed-on: https://pdfium-review.googlesource.com/4171
Commit-Queue: Nicolás Peña <npm@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fxcrt')
| -rw-r--r-- | core/fxcrt/fx_ext.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/core/fxcrt/fx_ext.h b/core/fxcrt/fx_ext.h index d7f21af9ff..8224087d88 100644 --- a/core/fxcrt/fx_ext.h +++ b/core/fxcrt/fx_ext.h @@ -57,15 +57,19 @@ inline bool FXSYS_iswspace(wchar_t c) { return (c == 0x20) || (c == 0x0d) || (c == 0x0a) || (c == 0x09); } +inline bool FXSYS_isHexDigit(const char c) { + return !((c & 0x80) || !std::isxdigit(c)); +} + inline int FXSYS_toHexDigit(const char c) { - if (!std::isxdigit(c)) + if (!FXSYS_isHexDigit(c)) return 0; char upchar = std::toupper(c); return upchar > '9' ? upchar - 'A' + 10 : upchar - '0'; } inline bool FXSYS_isDecimalDigit(const char c) { - return !!std::isdigit(c); + return !((c & 0x80) || !std::isdigit(c)); } inline bool FXSYS_isDecimalDigit(const wchar_t c) { @@ -73,7 +77,7 @@ inline bool FXSYS_isDecimalDigit(const wchar_t c) { } inline int FXSYS_toDecimalDigit(const char c) { - return std::isdigit(c) ? c - '0' : 0; + return FXSYS_isDecimalDigit(c) ? c - '0' : 0; } inline int FXSYS_toDecimalDigit(const wchar_t c) { |