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853天前// returns the index of the first occurrence of c in s |
// the reference parameter occurs counts how often c occurs |
string::size_type find_char(const string &s, char c, string::size_type &occurs) |
{ |
auto ret = s.size(); // position of the first occurrence, if any |
occurs = 0; // set the occurrence count paramter |
for (decltype(ret) i = 0; i != s.size(); ++i) |
{ |
if (s[i] == c) |
{ |
if (ret == s.size()) |
ret = i; // remember the first occurrence of c |
++occurs; // increment the occurrence count |
} |
} |
return ret; // count is returned implicitly in occurs |
} |
