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| 57 |
//---------------------------------------------- |
57 |
//---------------------------------------------- |
| 58 |
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58 |
|
| 59 |
inline bool isNumeric(const std::string& s) { |
59 |
inline bool isNumeric(const std::string& s) { |
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char *endp; |
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bool decimalPtSeen = false; |
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double unused = strtod(s.c_str(), &endp); // declared with warn_unused_result |
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bool exponentSeen = false; |
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unused = unused; // quiet compiler |
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char last = '\0'; |
| 63 |
return endp == s.c_str() + s.size(); |
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64 |
for (std::string::const_iterator it = s.begin (); it != s.end (); it++) |
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{ |
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if ((*it == '.') && (decimalPtSeen)) |
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return false; |
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else if (*it == '.') |
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decimalPtSeen = true; |
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else if ((*it == 'e') && exponentSeen) |
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return false; |
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else if (*it == 'e') |
| 73 |
{ |
| 74 |
exponentSeen = true; |
| 75 |
decimalPtSeen = false; |
| 76 |
} |
| 77 |
else if (*it == '-' && it != s.begin () && last != 'e') |
| 78 |
return false; |
| 79 |
|
| 80 |
last = *it; |
| 81 |
} |
| 82 |
return true; |
| 64 |
} |
83 |
} |
| 65 |
|
84 |
|
| 66 |
void |
85 |
void |