| 45 | //========================================================================= |
| 46 | |
| 47 | bool cInterpretInt::InterpretInt(const TSTRING& str, int* pi) |
| 48 | { |
| 49 | ASSERT(pi != 0); |
| 50 | |
| 51 | bool fFormatOK = true; |
| 52 | |
| 53 | // |
| 54 | // make sure string is not longer than a string representation of LIMIT_MAX |
| 55 | // |
| 56 | TOSTRINGSTREAM sstr; |
| 57 | sstr << cInterpretInt::LIMIT_MAX; |
| 58 | if (str.length() > sstr.str().length()) |
| 59 | fFormatOK = false; |
| 60 | |
| 61 | // |
| 62 | // make sure string is not too short |
| 63 | // |
| 64 | if (fFormatOK && str.length() <= 0) |
| 65 | fFormatOK = false; |
| 66 | |
| 67 | // |
| 68 | // make sure first character is a digit or the minus sign |
| 69 | // |
| 70 | if (fFormatOK) |
| 71 | { |
| 72 | if (!(_T('-') == str[0] || std::isdigit<TCHAR>(str[0], std::locale()))) |
| 73 | fFormatOK = false; |
| 74 | } |
| 75 | |
| 76 | // |
| 77 | // make sure all other characters are digits |
| 78 | // NOTE:BAM -- this assumes that all digits in all locales are SB characters. |
| 79 | // TODO:BAM -- check this... |
| 80 | for (TSTRING::size_type j = 1; fFormatOK && j < str.length(); j++) |
| 81 | { |
| 82 | if (!std::isdigit<TCHAR>(str[j], std::locale())) |
| 83 | fFormatOK = false; |
| 84 | } |
| 85 | |
| 86 | // |
| 87 | // do _ttoi conversion and check that it is within allowable limits |
| 88 | // |
| 89 | if (fFormatOK) |
| 90 | { |
| 91 | *pi = _ttoi(str.c_str()); |
| 92 | |
| 93 | if (*pi < GetMin() || *pi > GetMax()) |
| 94 | fFormatOK = false; |
| 95 | } |
| 96 | |
| 97 | return fFormatOK; |
| 98 | } |
no test coverage detected