avoid unnecessary empty strings ("") in favor of clear() and empty() … #468
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…(performance)
Changed:
std::string s = "";
to simplystd::string s;
(strings are empty when created)if (s == "")
toif (s.empty())
andif (s != "")
toif (!s.empty())
(avoiding temporaryconst char *
)s = ""
tos.clear()
(avoid temporary and faster)