reserve
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@ -72,6 +72,7 @@ cmp_nocase_uh(const string &s, const string &s2) {
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string
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downcase(const string &s) {
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string result;
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result.reserve(s.size());
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string::const_iterator p;
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for (p = s.begin(); p != s.end(); ++p) {
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result += tolower(*p);
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@ -87,6 +88,7 @@ downcase(const string &s) {
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string
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upcase(const string &s) {
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string result;
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result.reserve(s.size());
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string::const_iterator p;
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for (p = s.begin(); p != s.end(); ++p) {
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result += toupper(*p);
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